Return EZVPN traffic problem

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• Cisco Nexus 3548/3524 SNMP Interface traffic problem

  Hi all!

  I would like to share with you the problem I've encountered SNMP interface respect tracking on the Cisco Nexus 3500 of traffic devices.

  We is transferring our network infrastructure in the Nexus and we encountered a problem with the interface bitrate of tracking traffic on Nexus 3548: deltas SNMP counter ifHCInOctets and ifHCOutOctets show no valid data.

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  snmpscreenshotvlanint.jpg

  

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• Return VPN traffic flows do not on the tunnel

  Hello.

  I tried to find something on the internet for this problem, but am fails miserably. I guess I don't really understand how the cisco decides on the road.

  In any case, I have a Cisco 837 which I use for internet access and to which I would like to be able to complete a VPN on. When I vpn (using vpnc in a Solaris box as it happens which is connected to the cisco ethernet interface), I can establish a VPN and when I ping a host on the inside, I see this package ping happen, however, the return package, the cisco 837 is trying to send via the public internet facing interface Dialer1 without encryption. I can't work for the life of me why.

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  Here is the version of cisco:

  version ADSL #show
  Cisco IOS software, software C850 (C850-ADVSECURITYK9-M), Version 12.4 (15) T5, VERSION of the SOFTWARE (fc4)
  Technical support: http://www.cisco.com/techsupport
  Copyright (c) 1986-2008 by Cisco Systems, Inc.
  Updated Friday 1 May 08 02:07 by prod_rel_team

  ROM: System Bootstrap, Version 12.3 (8r) YI4, VERSION of the SOFTWARE

  ADSL availability is 1 day, 19 hours, 27 minutes
  System to regain the power ROM
  System restarted at 17:20:56 CEST Sunday, October 10, 2010
  System image file is "flash: c850-advsecurityk9 - mz.124 - 15.T5.bin".

  Cisco 857 (MPC8272) processor (revision 0 x 300) with 59392K / 6144K bytes of memory.
  Card processor ID FCZ122391F5
  MPC8272 CPU Rev: Part Number 0xC, mask number 0 x 10
  4 interfaces FastEthernet
  1 ATM interface
  128 KB of non-volatile configuration memory.
  20480 bytes K of on board flash system (Intel Strataflash) processor

  Configuration register is 0 x 2102

  And here is the cisco configuration (IP address, etc. changed of course):

  Current configuration: 7782 bytes
  !
  ! Last configuration change at 11:57:21 CEST Monday, October 11, 2010 by bautsche
  ! NVRAM config updated at 11:57:22 CEST Monday, October 11, 2010 by bautsche
  !
  version 12.4
  no service button
  tcp KeepAlive-component snap-in service
  a tcp-KeepAlive-quick service
  horodateurs service debug datetime localtime show-timezone msec
  Log service timestamps datetime localtime show-timezone msec
  encryption password service
  sequence numbers service
  !
  hostname adsl
  !
  boot-start-marker
  boot-end-marker
  !
  logging buffered 4096
  enable secret 5
  !
  AAA new-model
  !
  !
  AAA authentication login local_authen local
  AAA authentication login sdm_vpn_xauth_ml_1 local
  AAA authorization exec local local_author
  AAA authorization sdm_vpn_group_ml_1 LAN
  !
  !
  AAA - the id of the joint session
  clock timezone gmt 0
  clock daylight saving time UTC recurring last Sun Mar 01:00 last Sun Oct 01:00
  !
  !
  dot11 syslog
  no ip source route
  dhcp IP database dhcpinternal
  No dhcp use connected vrf ip
  DHCP excluded-address IP 10.10.7.1 10.10.7.99
  DHCP excluded-address IP 10.10.7.151 10.10.7.255
  !
  IP dhcp pool dhcpinternal
  import all
  Network 10.10.7.0 255.255.255.0
  router by default - 10.10.7.1
  Server DNS 212.159.6.9 212.159.6.10 212.159.13.49 212.159.13.50
  !
  !
  IP cef
  property intellectual auth-proxy max-nodata-& 3
  property intellectual admission max-nodata-& 3
  no ip bootp Server
  nfs1 host IP 10.10.140.207
  name of the IP-server 212.159.11.150
  name of the IP-server 212.159.13.150
  !
  !
  !
  username password cable 7
  username password bautsche 7
  vpnuser password username 7
  !
  !
  crypto ISAKMP policy 1
  BA 3des
  md5 hash
  preshared authentication
  Group 2
  !
  crypto ISAKMP policy 2
  BA aes 256
  preshared authentication
  Group 2
  !
  crypto ISAKMP policy 3
  BA 3des
  Prior authentication group part 2
  the local address SDM_POOL_1 pool-crypto isakmp client configuration
  !
  ISAKMP crypto client configuration group groupname2
  key
  DNS 10.10.140.201 10.10.140.202
  swangage.co.uk field
  pool SDM_POOL_1
  users of max - 3
  netmask 255.255.255.0
  !
  ISAKMP crypto client configuration group groupname1
  key
  DNS 10.10.140.201 10.10.140.202
  swangage.co.uk field
  pool SDM_POOL_1
  users of max - 3
  netmask 255.255.255.0
  ISAKMP crypto sdm-ike-profile-1 profile
  groupname2 group identity match
  client authentication list sdm_vpn_xauth_ml_1
  ISAKMP authorization list sdm_vpn_group_ml_1
  client configuration address respond
  ISAKMP crypto profile sdm-ike-profile-2
  groupname1 group identity match
  ISAKMP authorization list sdm_vpn_group_ml_1
  client configuration address respond
  !
  !
  Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac
  Crypto ipsec transform-set esp-3des esp-md5-hmac ESP_MD5_3DES
  Crypto ipsec transform-set ESP-AES-256-SHA aes - esp esp-sha-hmac
  !
  crypto dynamic-map SDM_DYNMAP_1 1
  Set the security association idle time 3600
  game of transformation-ESP-AES-256-SHA
  market arriere-route
  crypto dynamic-map SDM_DYNMAP_1 2
  Set the security association idle time 3600
  game of transformation-ESP-AES-256-SHA
  market arriere-route
  !
  !
  card crypto SDM_CMAP_1 client authentication list sdm_vpn_xauth_ml_1
  map SDM_CMAP_1 isakmp authorization list sdm_vpn_group_ml_1 crypto
  map SDM_CMAP_1 65535-isakmp dynamic SDM_DYNMAP_1 ipsec crypto
  !
  Crypto ctcp port 10000
  Archives
  The config log
  hidekeys
  !
  !
  synwait-time of tcp IP 10
  !
  !
  !
  Null0 interface
  no ip unreachable
  !
  ATM0 interface
  no ip address
  no ip redirection
  no ip unreachable
  no ip proxy-arp
  route IP cache flow
  No atm ilmi-keepalive
  PVC 0/38
  aal5mux encapsulation ppp Dialer
  Dialer pool-member 1
  !
  DSL-automatic operation mode
  waiting-224 in
  !
  interface FastEthernet0
  !
  interface FastEthernet1
  !
  interface FastEthernet2
  !
  interface FastEthernet3
  !
  interface Vlan1
  Description $FW_INSIDE$
  10.10.7.1 IP address 255.255.255.0
  IP access-group 121 to
  no ip redirection
  no ip unreachable
  no ip proxy-arp
  IP nat inside
  IP virtual-reassembly
  route IP cache flow
  map SDM_CMAP_1 crypto
  Hold-queue 100 on
  !
  interface Dialer1
  Description $FW_OUTSIDE$
  the negotiated IP address
  IP access-group 121 to
  no ip redirection
  no ip unreachable
  no ip proxy-arp
  NAT outside IP
  IP virtual-reassembly
  encapsulation ppp
  route IP cache flow
  No cutting of the ip horizon
  Dialer pool 1
  Dialer idle-timeout 0
  persistent Dialer
  Dialer-Group 1
  No cdp enable
  Authentication callin PPP chap Protocol
  PPP chap hostname
  PPP chap password 7
  map SDM_CMAP_1 crypto
  !
  local IP SDM_POOL_1 10.10.148.11 pool 10.10.148.20
  IP local pool public_184 123.12.12.184
  IP local pool public_186 123.12.12.186
  IP local pool public_187 123.12.12.187
  IP local pool internal_9 10.10.7.9
  IP local pool internal_8 10.10.7.8
  IP local pool internal_223 10.10.7.223
  IP local pool internal_47 10.10.7.47
  IP forward-Protocol ND
  IP route 0.0.0.0 0.0.0.0 Dialer1
  IP route 10.10.140.0 255.255.255.0 10.10.7.2
  !
  no ip address of the http server
  no ip http secure server
  IP nat inside source overload map route SDM_RMAP_1 interface Dialer1
  IP nat inside source static 10.10.7.9 123.12.12.184
  IP nat inside source static tcp 10.10.7.8 22 123.12.12.185 22 Expandable
  IP nat inside source static tcp 10.10.7.8 25 123.12.12.185 25 expandable
  IP nat inside source static tcp 10.10.7.8 80 123.12.12.185 80 extensible
  IP nat inside source static tcp 10.10.7.8 443 123.12.12.185 443 extensible
  IP nat inside source static tcp 10.10.7.8 993 123.12.12.185 993 extensible
  IP nat inside source static tcp 10.10.7.8 123.12.12.185 1587 1587 extensible
  IP nat inside source static tcp 10.10.7.8 8443 123.12.12.185 8443 extensible
  IP nat inside source static 10.10.7.223 123.12.12.186
  IP nat inside source static 10.10.7.47 123.12.12.187
  !
  record 10.10.140.213
  access-list 18 allow one
  access-list 23 permit 10.10.140.0 0.0.0.255
  access-list 23 permit 10.10.7.0 0.0.0.255
  Access-list 100 category SDM_ACL = 2 Note
  access-list 100 deny ip any 10.10.148.0 0.0.0.255
  access ip-list 100 permit a whole
  Note access-list 121 SDM_ACL category = 17
  access-list 121 deny udp any eq netbios-dgm all
  access-list 121 deny udp any eq netbios-ns everything
  access-list 121 deny udp any eq netbios-ss all
  access-list 121 tcp refuse any eq 137 everything
  access-list 121 tcp refuse any eq 138 everything
  access-list 121 tcp refuse any eq 139 all
  access ip-list 121 allow a whole
  access-list 125 permit tcp any any eq www
  access-list 125 permit udp any eq isakmp everything
  access-list 125 permit udp any any eq isakmp
  access-list 194 deny udp any eq isakmp everything
  access-list 194 deny udp any any eq isakmp
  access-list 194 allow the host ip 123.12.12.184 all
  IP access-list 194 allow any host 123.12.12.184
  access-list 194 allow the host ip 10.10.7.9 all
  IP access-list 194 allow any host 10.10.7.9
  access-list 195 deny udp any eq isakmp everything
  access-list 195 deny udp any any eq isakmp
  access-list 195 allow the host ip 123.12.12.185 all
  IP access-list 195 allow any host 123.12.12.185
  access-list 195 allow the host ip 10.10.7.8 all
  IP access-list 195 allow any host 10.10.7.8
  not run cdp
  public_185 allowed 10 route map
  corresponds to the IP 195
  !
  public_184 allowed 10 route map
  corresponds to the IP 194
  !
  allowed SDM_RMAP_1 1 route map
  corresponds to the IP 100
  !
  !
  control plan
  !
  !
  Line con 0
  connection of authentication local_authen
  no activation of the modem
  preferred no transport
  telnet output transport
  StopBits 1
  line to 0
  connection of authentication local_authen
  telnet output transport
  StopBits 1
  line vty 0 4
  access-class 23 in
  privilege level 15
  authorization exec local_author
  connection of authentication local_authen
  length 0
  preferred no transport
  transport input telnet ssh
  !
  max-task-time 5000 Planner
  Scheduler allocate 4000 1000
  Scheduler interval 500
  130.88.202.49 SNTP server
  130.88.200.98 SNTP server
  130.88.200.6 SNTP server
  130.88.203.64 SNTP server
  end

  Any help would be appreciated.

  Thank you very much.

  Ciao,.

  Eric

  Hi Eric,.

  (Sorry for the late reply - needed some holidays)

  So I see that you have a few steps away now. I think that there are 2 things we can try:

  1)

  I guess you have provided that:

  IP nat inside source overload map route SDM_RMAP_1 interface Dialer1

  Since the routemap refers to ACL 100 to define the traffic to be translated, we can exclude traffic that initiates the router:

  Access-list 100 category SDM_ACL = 2 Note

  access-list 100 deny ip 123.12.12.185 host everything
  access-list 100 deny ip any 10.10.148.0 0.0.0.255
  access ip-list 100 permit a whole

  Which should prevent the source udp 4500 to 1029 changing port

  OR

  2)

  If you prefer to use a different ip address for VPN,

  Then, you can use a loop like this:

  loopback interface 0

  123.12.12.187 the IP 255.255.255.255

  No tap

  map SDM_CMAP_1 crypto local-address loopback 0

  I don't think you should apply card encryption to the loopback interface, but it's been a while since I have configured something like that, so if you have problems first try and if still does not get the crypto debugs new (isakmp + ipsec on the vpn, nat router on the router of the client package).

  HTH

  Herbert

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• Fill out and return to zero problems with Deskjet 3052 has printer and cartridge 61xl black

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  I'm just playing with a few ASA and ask yourself which allows return HTTP traffic in the firewall? Also, what other traffic is allowed by default as HTTP?

  Traffic is from a security interface upper (inside, 100) to a lower (outside, 0) security interface. There is no ACLs not applied on all interfaces.

  I ask because ICMP does not work unless inspection is on (global service-policy global_policy).

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  Firewalls like ASA is with State so for TCP and UDP (albeit with UDP State is handled a little differently) if traffic is allowed a way it automatically allows him back.

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  in the following rule:

  static (dmz, outside) interface PORT # server port # netmask 255.255.255.255 tcp 0 0

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  Thank you

  non-eclairees

  No, you can't do that and PIX Analyzer will not allow him.

  Think that everything that happens to traffic if you have mapped to say, outside the ports 40 and 41 inside port 40. Incoming traffic on a port, both will be mapped to the port inside 40, no problem. The return however, traffic would hit the PIX, who must then decide whether to map port 40 or 41 outside. The PIX has no way of knowing which it should be, and if it fails.

• Laptop HP Pavilion 2320DX g4: computer hp laptop pavilion g4 does not start successfully after update and return to windows 8.1

  Hi, I have recently updated my laptop to Windows 10. He had so many problems and I didn't like it at all, so I just returned my laptop to Windows 8.1.  Since then, my laptop does not correctly every time, and the fan immediately starts to work as well. I can start my pc and connect to my home screen each time.  If the tile is moving or light up when I move my cursor, then I know that I can use my laptop for a little while. It can freeze after getting out a good program. Other times when I start my laptop, everything is dead except for logging on my screen. My Windows key on the keyboard does not work most of the time.  If the screen does not respond the first time I turn, as described above, I can't absolutely nothing on my pc. I can't access the search bar by moving the cursor to top right, I can't open the tiles, I can't spend in desktop mode, etc.  Front I upgraded to Windows 10 and downgraded to 8.1 all worked perfectly, because I've updated from 8.0 to 8.1 Windows almost 2 years.  I have a defective battery. in fact I can only use my laptop if it is plugged. My fan is constantly going, but I don't know if it's my loss of battery or what's wrong with my pc now.  I have described my problem in the Microsoft community forum but have had little response that was not helpful. I was told to go to the command prompt and put in DISM: scan now (which also contained letters more than that, but I do not remember all). I followed the instructions and for 2 days, my pc seems to do better. Then he returned to this problem again. I hope you can help me.  If you have additional questions, post here or please email me at [removed personal information]. Thank you!

  DEB

  @DWESTDEWITT,

  Hello and thanks for the display on the HP support forum.  What you can do at this point that there are several updates released by microsoft and hardware vendors is running the Windows Update Troubleshooter.

  If this fails to solve the problem.  The only option will be to restore the operating system to the previous, until HP gets the drivers so that they can release them on the support page for your laptop for Windows 10.

  Thanks again for posting and have a great day.

• Business cards printing Avery: «the WANDERING MARGIN PROBLEM-upper margin question»

  Does anyone have an idea if HP has an idea on how to charge someone to solve this problem of card perforated business stock do not print correctly?  This problem is now all over the internet.

  I intend to consumerist on-site validation in the hope that they would return to the problem.

  And look at all the other posts for business card printing problems that I looked into this forum and no there are no solutions.  And no huge thick shouldn't matter since everyone here has probably seen a HP catch upwards of more than 3 or more sheets of paper and print on the top, okay...

  I suffer from this PROBLEM of MARGIN WANDERING too.  I have

  have the printer of HP all-in-one Officejet Pro L7680, Windows XP, Office 2007, Microsoft Publisher, model Avery 8873.  I did everything correctly.  Always my business cards print perfectly on regular paper and they print directly from the upper part on the expensive card stock.  It's very frustrating.

  I tried the ideas here.  I tried thick paper, map of Photo greeting, best quality and normal quality.  I tried holding my finger on the map slightly as it feeds in.  I tried folding the sides of the card upward slightly.  I get a print one out of every five success.  I'm so freakin disappointed I could scream.  I've been laid off and I put in network and interviews to attend to and I need my business cards!

  Avery people are useless.  They wanted me to call Microsoft!  I kept saying 'Meg' alignment was very good for ordinary and incorrect paper with a stock of cards Avery.  I asked her if she knew thick HP for card stock printer settings.  She told me to call Microsoft.  I wonder if she was in fact an automaton that accepts no responsibility.

  I thought I bought the best brand printer.  I tried the Brother brand.  They are really lousy.  I really expect HP to be better.

  In the end, I got a few cards that are acceptable.  But I've lost 80%!  If you compare them they are not all aligned the same.  With capacities of shit like that I could just my printer scrap and the contract of employment at Office Depot.  Who needs this aggravation?

  Joe

• error message "Windows Explorer has encountered a problem and needs to close" on click with the right button in my computer

  I had this problem for awhile now.  After I receive and send the error report my computer is blocked and I have to finish by WTM. I tried to start in safe mode and it was ok there and when I restarted in normal mode it was ok for the rest of the day, but when I put the computer today the problem reappeared. Dr. Watson is also sometimes with an error message.

  I am running XP with MS and updates.

  Would appreciate some advice.

  Chris

  When the Windows Explorer (not Internet Explorer) is wrong (especially when right click), begin to suspect third-party add-ons explore extension.

  Those who would be the Explorer extensions that do not belong to Microsoft.  This means that extensions that you have added.  Solution Explorer extensions are generally well and installation of certain applications will install extensions from Explorer solutions for you, give you a choice and sometimes they can be added without your knowledge when you install the new software.

  Solution Explorer extensions are sometimes added as a new right-click option, you see on folders and files (like the scan of this file, open that file, play this song...).

  If there is something in particular that you do during exploration that you know will be the cause of the problem, which will help focus on the problem and the help that you suddenly know, when you have found and corrected.  If you can get there when you want it, make an adjustment and then there is no message the next time you don't do anything, you do, you have found and corrected.

  First of all you need a way to see what modules explore you have installed now and a way to turn them off (not uninstall them) so you can understand that we are at the origin of the problem.  You can have a lot of extensions not installed Microsoft don't even know you about.

  Download ShellExView here to see what Explorer extensions you have loaded:

  http://www.NirSoft.NET/utils/shexview.html

  ShellExView does not install anything on your computer, simply of runs and displays.

  After launching ShellExView, under Options, choose "Mark non-Microsoft Extensions" and extensions not Microsoft will be pink, clear, but on some systems which is a difficult color to see, so click on display, choose the columns and move the column Microsoft closer to the top, so you can see on your screen without having to scroll left and right.

  Click on the column header for Microsoft sort display (by clicking on the column of Microsoft) then all the non Microsoft extensions are on top and easy to see.

  Non-Microsoft extensions would be things you have added (non-Microsoft) and are what you should be suspect.

  You can also Google the name of a suspect add-on and see if there is any success on the mistakes of the DEP and what other people have done about it.
  You can Google something like:

  Explorer XP crashing (you must fill in the name of add your suspect on.)

  See what kind of search results hits you get and are looking for solutions or situations that sound like yours.

  I'm not a defender of trial and error, but I can't think of another way to do...

  Right click and disable the non Microsoft extensions one at a time (or maybe in groups of 3-5 at a time), keep a list, so you can enable them again later if you wish. The result of the change is immediate and no reboot is necessary.  Test your failure condition.  If the Explorer starts to behave, you will know that an extension of this group of 3-5 is the culprit in order to start to enable them one by one until the Explorer fails again.

  If you recognize all the extensions that have been added or recently downloaded, start with these first.

  Don't forget - disabling the extension does not uninstall the extension - it is just disabled so you can always turn it on again.  In this way, you can switch back and forth, enabled to be sure, you have the right extension under control.

  Disable them one at a time until your right click on do not generate an error, then restart and test again to make sure the changes 'stick '.  You have disabled the last extension would be suspicious.

  You can also just disable all non-Microsoft extensions, restart and allow them one at a time until you find the one that generates the condition.

  If you have a large number of extensions, you can disable them is small groups, 3-5 at a time instead of 1 at a time until your system starts to behave.  When it does not, you will know that the problem is one of the extensions of this small group and you can enable members of the Group at a time until the problem returns, then the problem is with the last extension that you enabled.

  The hope is that you will find an extension that caused the error, and then you can figure out what on this subject - either uninstall it or see if you can get an update of the author of the extension of their web page.

  I have not your problem, but I can when you toggle extensions, the extension is immediately disabled, so disable an extension does not seem to require a restart, but if you think that you have found the problem, I reboot and repeat the test in any case to be sure the problem disappeared.

  If you post your non-Microsoft extensions list, maybe someone will recognize it as a potential problem.

  If you find the offending extension that's the problem, please let us know what it is that I can add to my list.

• Error - Internet Explorer has encountered a problem and must close in Internet Explorer & jump - rises in Windows Explorer.

  Original title: Windows/Internet Explorer / Data Execution Prevention.

  I constantly receive pop-ups Windows and/or Internet Explorer has encountered a problem and needs to close. Windows Explorer in particular sometimes will do every few seconds.  I also sometimes have a debugger of Dr. Watson popup that blocks everything on my computer.

  I also get a pop-up Windows Data Execution Prevention indicating that Windows has closed this program to help protect my computer.

  My icons on the desktop this process will sometimes disappear.  I am able to restore in the Manager of tasks by clicking on the following:

  "C:\Documents and Settings\Administrator\Menu Démarrer\Programmes\Accessoires\Explorateur Explorer.lnk"

  I can't go online most of the time.  Sometimes I'm able to sneak in a "back door" by clicking on a link in an email, but time is limited (from five minutes to five hours) until I started offshore.

  Please notify.

  This root killer Webroot suggested?

  Are you going to provide the other requested information (requested) on your system and if not, why not?

  Did you run the scans listed in my previous post and if not, why not?  I am reluctant to work on weird problems with XP if MBAM and SAS have not been executed.

  So far, I never saw a Microsoft Support Engineer in these forums effectively resolve an error DEP in the 'right' way.  Sometimes, they have some things to try (how that works for you?), but you don't need methods to try, you will need to do things that solve your problem.

  I doubt that you have a memory problem or disk - which is not what causes the DEP errors.

  If you have made any exceptions DEP in XP to try and get your working papers, you must cancel all DEP exceptions to go forward.

  If I've ever seen Windows Explorer crashing and DEP errors, here's what I've done to understand what is happening:

  When the Windows Explorer (not Internet Explorer) is wrong (especially when right click), begin to suspect third-party add-ons explore extension.

  Those who would be the Explorer extensions that do not belong to Microsoft.  This means that extensions that you have added.  Solution Explorer extensions are generally well and installation of certain applications will install extensions from Explorer solutions for you, give you a choice and sometimes they can be added without your knowledge when you
  install new software.

  Solution Explorer extensions are sometimes added as a new right-click option, you see on folders and files (like the scan of this file, open that file, play this song).

  If there is something in particular that you do during exploration that you know will be the cause of the problem, which will help focus on the problem and the help that you suddenly know, when you have found and corrected.  If you can get there when you want it, make an adjustment and then there is no message the next time you don't do anything, you do, you have found and corrected.

  First of all you need a way to see what modules explore you have installed now and a way to turn them off (not uninstall them) so you can understand that we are at the origin of the problem.  You can have a lot of extensions not installed Microsoft don't even know you about.

  Download ShellExView here to see what Explorer extensions you have loaded:

  http://www.NirSoft.NET/utils/shexview.html

  ShellExView does not install anything on your computer, simply of runs and displays.

  After launching ShellExView, under Options, choose "Mark non-Microsoft Extensions" and extensions not Microsoft will be pink, clear, but on some systems which is a difficult color to see, so click on display, choose the columns and move the column Microsoft closer to the top, so you can see on your screen without having to scroll left and right.

  Click on the column header for "Microsoft" sort display (by clicking on the column of Microsoft) if all non-Microsoft extensions (all the 'Our') are on top and easy to see.

  Non-Microsoft extensions would be things you have added (non-Microsoft) and are what you should be suspect.

  You can also Google the name of a suspect add-on and see if there is any success on the mistakes of the DEP and what other people have done about it.
  You can Google something like:

  Explorer XP crashing (you must fill in the name of add your suspect on).

  See what kind of search results hits you get and are looking for solutions or situations that sound like yours.

  I'm not a defender of trial and error, but I can't think of another way to do...

  Right click and disable the non Microsoft extensions one at a time (or maybe in groups of 3-5), keep a list, so you can enable them again later if you wish. The result of the change is immediate and no reboot is necessary.  Test your failure condition.  If the Explorer starts to behave, you will know that an extension of this group of 3-5 is the culprit in order to start to enable them one by one until the Explorer fails again.

  If you recognize all the extensions that have been added or recently downloaded, start with these first.

  Disabling the extension does not uninstall the extension - it is just disabled.

  Disable them one at a time until your right click on do not generate an error, then restart and test again.  You have disabled the last extension would be suspicious.

  You can also just disable all non-Microsoft extensions, restart and allow them one at a time until you find the one that generates the condition.

  If you have a large number of extensions, you can disable them is small groups, 3-5 at a time instead of 1 at a time until your system starts to behave.  When it does not, you will know that the problem is one of the extensions of this small group and you can enable members of the Group at a time until the problem returns, then the problem is with the last extension that you enabled.

  The hope is that you will find an extension that caused the error, and then you can figure out what on this subject - either uninstall it or see if you can get an update of the author of the extension of their web page.

  I have not your problem, but I can when you toggle extensions, the extension is immediately disabled, so disable an extension does not seem to require a restart, but if you think that you have found the problem, I reboot and repeat the test in any case to be sure the problem disappeared.

  If you post your non-Microsoft extensions list, maybe someone will recognize it as a potential problem.

  If you find the offending extension that's the problem, please let us know what it is that I can add to my list.

  If complains in Internet Explorer, run Internet Explorer with no Add-ons and see if you still have the problem.

  If Internet Explorer then runs OK with no Add-ons, you can determine what add-on is the cause of the problem.

  Fortunately, Windows has a built in option to run Internet Explorer with no Add - ons (imagine that).

  To start Internet Explorer with no add-on, click on start, programs, System Tools, then choose:

  Internet Explorer (No Add-ons)

  If you can't find that, click Start, run and enter in the box (or copy/beyond the next line):

  "C:\Program may Explorer\iexplore.exe"-extoff

  Click OK to start IE with no Add - ons.

  IE will launch with a message reminding you that it runs with no Add - ons and ask you to click on the button Home (do) and then you can visit the web pages where you might think that you will get a DEP error.  Pages may be different, but you want to see if you still get the DEP error message or not.  You can then activate the Add-ons one at a time until find you the one that is causing problems.