The Windows Installer appears constantly everytime I open any folder.

Similar Questions

• The Windows Installer appears when not claimed after you install the new printer.

  I installed a Canon S400 printer and now when I open a folder, file or no matter what shortcut (either by double clicking or right click Open) MSI is trying to install one of the two applications PDF I had already installed. After canceling the installation program, the file opens. How can I fix? I am running Windows XP SP2. Please do not say reinstall applications, I have uninstalled them because they proved to be useless junk.

  If you don't want to reinstall applications, then use the Windows Installer Cleanup utility to remove these entries.

  Clean Up MSI (Windows Installer) - http://support.microsoft.com/default.aspx?scid=kb;en-us;290301

  MS - MVP - Elephant Boy computers - don't panic!

• the Windows Installer appears after each start up, then disappears. If I try to install anything, he stops and tells me to wait a gift install is complete.

  Windows Installer appears after my start, then he explains the preparation of the installation goes. When I try to install or to uninstall it tells me to wait until a current installation is complete.

  I'm totally lost on this one.

  How to troubleshoot issues that may occur when you install, uninstall, or upgrade one program on a Windows computer
  http://support.Microsoft.com/kb/2438651/en-us

  J W Stuart: http://www.pagestart.com

• Explorer Windows has stopped working. (when I open ANY folder)

  any folder, I try to open, (my documents, downloads, photos, C drive, folders on the desktop, my computer, readers Flash and even mp3 players) an update Microsoft security Essentials scan clean and sfc/scannow does not solve the problem, nothing works it is so annoying because I can't to anything that is not on the desktop

  Hello

  What antivirus/antispyware/security products do you have on the machine? Be one you have EVER
  on this machine, including those you have uninstalled (they leave leftovers behind which can cause
  strange problems).

  ----------------------------------------------------

  Follow these steps: (ran SFC so you also run CheckDisk?)

  Start - type this in the search box-> find COMMAND at the top and RIGHT CLICK – RUN AS ADMIN

  Enter this at the command prompt - sfc/scannow

  How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
  generates in Windows Vista cbs.log
  http://support.Microsoft.com/kb/928228

  Also run CheckDisk, so we cannot exclude as much as possible of the corruption.

  How to run the check disk at startup in Vista
  http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html

  ==========================================

  After the foregoing:

  How to troubleshoot a problem by performing a clean boot in Windows Vista
  http://support.Microsoft.com/kb/929135
  How to troubleshoot performance issues in Windows Vista
  http://support.Microsoft.com/kb/950685

  Optimize the performance of Microsoft Windows Vista
  http://support.Microsoft.com/kb/959062
  To see everything that is in charge of startup - wait a few minutes with nothing to do - then right-click
  Taskbar - the Task Manager process - take a look at stored by - Services - this is a quick way
  reference (if you have a small box at the bottom left - show for all users, then check that).

  How to check and change Vista startup programs
  http://www.Vistax64.com/tutorials/79612-startup-programs-enable-disable.html

  A quick check to see that load method 2 is - using MSCONFIG then put a list of
  those here.
  --------------------------------------------------------------------

  Tools that should help you:

  Process Explorer - free - find out which files, key of registry and other objects processes have opened.
  What DLLs they have loaded and more. This exceptionally effective utility will show you even who has
  each process.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896653.aspx

  Autoruns - free - see what programs are configured to start automatically when you start your system
  and you log in. Autoruns also shows you the full list of registry and file locations where applications can
  Configure auto-start settings.
  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902.aspx
  Process Monitor - Free - monitor the system files, registry, process, thread and DLL real-time activity.
  http://TechNet.Microsoft.com/en-us/Sysinternals/bb896645.aspx

  There are many excellent free tools from Sysinternals
  http://TechNet.Microsoft.com/en-us/Sysinternals/default.aspx

  -Free - WhatsInStartUP this utility displays the list of all applications that are loaded automatically
  When Windows starts. For each request, the following information is displayed: Type of startup (registry/Startup folder), Command - Line String, the product name, Version of the file, the name of the company;
  Location in the registry or the file system and more. It allows you to easily disable or remove unwanted
  a program that runs in your Windows startup.
  http://www.NirSoft.NET/utils/what_run_in_startup.html

  There are many excellent free tools to NirSoft
  http://www.NirSoft.NET/utils/index.html

  Window Watcher - free - do you know what is running on your computer? Maybe not. The window
  Watcher says it all, reporting of any window created by running programs, if the window
  is visible or not.
  http://www.KarenWare.com/PowerTools/ptwinwatch.asp

  Many excellent free tools and an excellent newsletter at Karenware
  http://www.KarenWare.com/

  ===========================================

  Vista and Windows 7 updated drivers love then here's how update the most important.

  This is my generic how updates of appropriate driver:

  This utility, it is easy see which versions are loaded:

  -Free - DriverView utility displays the list of all device drivers currently loaded on your system.
  For each driver in the list, additional useful information is displayed: load address of the driver,
  Description, version, product name, company that created the driver and more.
  http://www.NirSoft.NET/utils/DriverView.html

  For drivers, visit manufacturer of emergency system and of the manufacturer of the device that are the most common.
  Control Panel - device - Graphics Manager - note the brand and complete model
  your video card - double - tab of the driver - write version information. Now, click on update
  Driver (this can do nothing as MS is far behind the certification of drivers) - then right-click.
  Uninstall - REBOOT it will refresh the driver stack.

  Repeat this for network - card (NIC), Wifi network, sound, mouse, and keyboard if 3rd party
  with their own software and drivers and all other main drivers that you have.

  Now in the system manufacturer (Dell, HP, Toshiba as examples) site (in a restaurant), peripheral
  Site of the manufacturer (Realtek, Intel, Nvidia, ATI, for example) and get their latest versions. (Look for
  BIOS, Chipset and software updates on the site of the manufacturer of the system here.)

  Download - SAVE - go to where you put them - right click - RUN AD ADMIN - REBOOT after
  each installation.

  Always check in the Device Manager - drivers tab to be sure the version you actually install
  presents itself. This is because some restore drivers before the most recent is installed (sound card drivers
  in particular that) so to install a driver - reboot - check that it is installed and repeat as
  necessary.

  Repeat to the manufacturers - BTW in the DO NOT RUN THEIR SCANNER device - check
  manually by model.

  Look at the sites of the manufacturer for drivers - and the manufacturer of the device manually.
  http://pcsupport.about.com/od/driverssupport/HT/driverdlmfgr.htm

  How to install a device driver in Vista Device Manager
  http://www.Vistax64.com/tutorials/193584-Device-Manager-install-driver.html

  If you update the drivers manually, then it's a good idea to disable the facilities of driver under Windows
  Updates, that leaves about Windows updates but it will not install the drivers that will be generally
  older and cause problems. If updates offers a new driver and then HIDE it (right click on it), then
  get new manually if you wish.

  How to disable automatic driver Installation in Windows Vista - drivers
  http://www.AddictiveTips.com/Windows-Tips/how-to-disable-automatic-driver-installation-in-Windows-Vista/
  http://TechNet.Microsoft.com/en-us/library/cc730606 (WS.10) .aspx

  Hope these helps.

  Rob Brown - MS MVP: Bike - Mark Twain said it right.

• Windows Installer runs when trying to open any program

  original title: Installer windows continues execution

  to restore computer to 10 days ago.very hard do.have vista 64 svc pk 2 4 gig memory 4 fifths free.  This happened after my system came down very shortly after that I used Mr. fixit to sucessfully remove office 2003 pro and I reinstalled successfully.  I was trying to get my updates made when it went down.  When I got to the high winds Installer keeps exe when I open a prog or restart the computer.  Thank you bill

  If your problems started with the updates, read this bit this bit of info on problem updated, I did:

  http://www.bleepingcomputer.com/tutorials/tutorial140.html

  Understand the Extras in Windows Vista and Windows Update info is at the link above.

   

  Remove the Vista updates; two ways to do this:

  1. a System Restore to before the updates:

  Click Start > programs > Accessories > system tools > System Restore > restore time/choose your own date > next

  If you use Norton, disable it before using the system restore.

  If it is impossible to enter the Normal Mode, do a Safe Mode system restore:

  Press F8 at the startup/power and the list of startup options, use THE ARROW key to select Safe mode > and then press ENTER.

  System restore steps according to the info above.

  Also:

  2. click on start > right click on computer > properties > Windows updates down the lower left corner > updates installed in the lower left corner in the next window

  > then click the one that you don't want > uninstall will appear at the top > uninstall it.

  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  In addition, on the page where you clicked "Installed updates", click on change settings at the top left corner it

  > Change update settings in the next page of AutoUpdate to "check for updates but let me choose etc" > OK ".

  When you take a look at pending updates, you can either download/install them one at the time, namely the update causing you problems.

  > or if you do not need an individual > right-click on > UAC prompt > hide it

  See you soon.

  Mick Murphy - Microsoft partner

• Satellite Pro A300 - I get the 'Windows search' if I left click on any folder

  I just bought a Satellite Pro A300 and it downgraded to Windows XP SP3.

  When I click the icon of any folder on my hard drive I got the "Windows Search" window instead of the folder. When I right click on any folder icon, the first item on the menu (in bold) is "search".

  How can I change the order of these items in menu so as 'Open' is the first element?

  Delete (Control Panel Add / Remove Programs) the installation of Windows Search without affecting any software I have loaded?

  Looking for Windows installation installed the likely cause of my problem?

  Thank you

  Murray

  Just solved my problem:

  1. the order of the items in the context menu of files can be changed by updating actions for file types specified in the Folder Options Menu. Select Folder Options + of + the + Tools + menu of any folder, select + File Types + and scroll to the bottom for * file *. Click on * advanced * then * New * and add * open * with * Explorer * as the program to use. Click on * OK * and * Close * and bingo! Appears in the order of the menu shortcut in XP is open before you search, but in XP Pro followed research of Open / Explore.

  2. the utility Windows search can be deleted without problem despite the warning launched - Microsoft Web site indicates the warning is simply a generic warning and it is highly unlikely that removal will affect all software installed since the loading search utility.

  3. the Windows Search utility is NOT the cause of this problem.

  Trust that the other could save hours of research that I had to do to find this solution...

• The Windows Installer will not stop

  I have vista64 and when I use some programs, especially my HP MFP, the windows installer appears every time over and over again. The problem is not with the printer drivers, because I replaced my printer and installed the new software and the installation window returns.

  Hello

  Download the Installer Cleanup Utility from the link below and use it to remove the remains of the latest software installed:

  http://download.Microsoft.com/download/e/9/d/e9d80355-7ab4-45b8-80e8-983a48d5e1bd/msicuu2.exe good luck, Rick Rogers, aka "Crazy" - Microsoft MVP http://mvp.support.microsoft.com Windows help - www.rickrogers.org

• Please can someone explain why the windows Installer keeps appearing when nothing is installed? Any way to stop this?

  Why the Windows Installer keep popping up, either on a web page or an e-mail to the office when nothing is installed.  No way to stop that... ?

  The desktop of your computer, click on the tab "Start", usually located at the bottom left of the screen (on Vista, it's maybe the windows symbol instead of the word 'Start').

  Now, find and click on the program title 'run '. Vista users can locate this program by typing "run" in the area of research at the bottom of the menu 'start '.

  Once you open 'Run', type 'MSCONFIG' in the empty box and click 'OK '. This will open the System Configuration utility.

  With the open System Configuration utility, select the tab "Services".

  Scroll down the list of services (it may be advantageous to click on the 'service' column to sort the services by alphabetical order) until you find the program "Windows Installer".

  Now, click on the checkbox next to the name of the Windows Installer and click on the button 'Disable' at the bottom of the Configuration of the system.

• I try to install or uninstall programs, but a message appears and says "the Windows Installer service is not to be accessible" GOLD that the system administrator has set policies to prevent this installation

  Several times I tried to install itunes but a message pops up saying

  • Windows install is not properly installed and

  I also try to uninstall programs and whenever it says the system administrator has set policies to prevent this installation, but I've changed my settings so that I can be the administrator

  • the windows service install could not be accessed
  Hello
   
  You may encounter this error message when the Windows Installer files on the system are missing or damaged.
  You can resolve the error by using the methods mentioned below:
   
  Method 1: Start the Windows Installer service
   
  a. Click Start, type "Services.msc" and press {ENTER}
  b. double-click Windows Installer
  c. the value of the Windows Installer Manual startup type
  d. Click Start to start the service. Note the error message, if any.
  e. click OK.
   
  Method 2: Unsubscribe and re - register the Windows Installer
   
  a. Click Start, click Run, type "MSIEXEC /Unregister." and then click OK. Even if you do it right, it may seem that nothing is happening.
  b. Click Start, run, type "MSIEXEC/REGSERVER" and then click OK. Even if you do it right, it may seem that nothing happens, or you can briefly see an hourglass.
  After you run this command, the operation is complete.
  c. try your application based on Windows Installer again.
   
  Method 3: Scan SFC
   
  Perform a scan of the SFC to check if this is related to the missing or corrupt file system.
   
  How to use the System File Checker tool to fix the system files missing or corrupted on Windows Vista or Windows 7
  http://support.Microsoft.com/kb/929833
   
  Aziz Nadeem - Microsoft Support

  [If this post was helpful, please click the button "Vote as helpful" (green triangle). If it can help solve your problem, click on the button 'Propose as answer' or 'mark as answer '. [By proposing / marking a post as answer or useful you help others find the answer more quickly.]

• associate the Windows Installer Windows XP .msp files

  Hello

  I need to execute a file .msp (patch for a software) that would be associated with Windows Installer under Win7, but don't natively is not with Windows XP.  If I right click on the file and select 'Open with', the Windows Installer does not appear in the list.  If I browse and try to locate the Windows installation program, I don't know (I did several searches but not prevail).

  Hello

  If I remember what I did was to remove the association for PaintShop Pro .msp files should open up PaintShop and then click on file > Preferences > file associations, and then DESELECT .msp format.

  To make this work on Win7, you may need to start PaintShop with administrator rights (rather than simply clicking on the shortcut, right-click and select "Run as Administrator" for PaintShop now has the right to change the registry.

  If you succeed, then the .msp file will be more associated with PaintShop Pro and should show as a no associated file.  Then, pair it with Windows Installer patch as I mentioned.  When you have finished installing the patch, you may want to reassociate for PaintShop .msp files, if you have graphics files with this extension.

  I hope this works.

• "The Windows Installer Service could not be accessed. This can happen if Windows install is not properly installed. Contact your support team. »

  I use Vista 64 Ultimate.

  The last item I have installed is iTunes 8. I managed to install, but a few hours later the error pops up.

  I can download is nothing more.
  I can't install anything.

  When I go into computer management and try manually a start, I get this:
  "Windows cannot start the Windows Installer service on Local computer.       "Error 216: 0xd8.

  I can't update anything.

  As I said earlier, when I try to download anything, it looks like it is downloading but no files appear in fact where they should be.

  Please help, I have ALL my work on this computer and I didn't save anything. :(

  Hi VVinter

  Thank you for using the Microsoft Answers Forums!

  We can try a few steps listed below and check.

  Step 1:

  Run an on-line analysis of your PC of malicious software:

  If you want to scan your computer for malware and potentially unwanted on a Web site, please use the Windows Live OneCare safety scanner.

  You can also run Anti-Malware on your computer. Follow the steps in this link:

  http://social.answers.Microsoft.com/forums/en-us/vistasecurity/thread/ba80504b-61f1-4D71-960f-b561798b7b42

  Step 2: Windows Service install

  To check if the Windows Installer service is set to Disable, follow these steps:

  1. Click Start, click run, type services.msc in the Open text box, and then click OK.
  2. In the list of Services (Local) , right-click Windows Installer, and then click Properties.
  3. If the drop-down list Startup type is set to the value off, select the Manual option in the drop-down list Startup type , Start the service and then click OK.
  4. Click the file menu, and then click exit.

  You can also try to download the latest Windows Installer and install it:

  http://www.Microsoft.com/downloads/details.aspx?FamilyId=5A58B56F-60B6-4412-95B9-54D056D6F9F4&displaylang=en

  Note: Uninstall one already present in your system to-> program and features in the control panel.

  Hope this information was useful.

  Let me know if it worked.

  All the best!

  Thank you and best regards,

  R uma - Microsoft technical support.

  Visit our Microsoft answers feedback Forum and let us know what you think.

• "Error 1719. Able to access the Windows Installer Service"when you install programs.

  After spending the last week every night trying to get some software installed (and of course the search for remedies in probably all available forums), I let go and post this request for assistance. But first my story:

  I have lived the last week suddenly my Neat Receipts software does not recognize my scanner more. Trying to reinstall the software, I came across the error that Windows Installer could not be started. That's when I started first for solutions. I was surprised how many solutions I found (but more redoubled practically the same thing), but none did it for me. At this point, I was always under the assumption that it is a problem of the Neat Receipts software.

  Then after another night of frustration I could not pass my trial version Office 2010 plus a sort of license error. I was a little surprised that the trial version which abruptly ended without giving me the opportunity to enter a license key (I got wrong), but doesn't bother too much because I liked the product and had noticed last week as well as Office 2010 is already officially released and I decided to buy it. After spending about $300 and a successful upload, I tried to install it.

  And here my saga continues. First I got the message that I couldn't upgrade my trial version and need to uninstall. Uninstall with the uninstaller routine does not work (windows error message install), but I could uninstall it using the Windows-Install-Clean-Up utility. Now, I can start the installation process, but after being nearly halfway through the installation, I again get the error of Windows install the Windows Installer Service cannot be accessed (Error 1719). It is roughly the same error that I got at the beginning, when I tried to reinstall the software, Neat receipts. So, it seems not to be a misapplication of Neat receipts or Office 2010, but a windows problem.

  The frustrating thing however is that after spending all hours searching online for solutions, the only thing I've discovered is that I am in good company (i.e. There are many others have reported the same problem), but none of the solutions work. Just to be safe, do not for get the same Advisor I tried already several times, let me enumerate what I've done so far:

  1. I am logged on as administrator

  2 - I started the Windows Installer service

  3 - I ran SCF /sannow (no problems found)

  4. I not saved and re-entered the msiecec with / opt and/regserver. I did so explicitly for BOTH (!) msiexec programs, one in the system32 folder and the one in the sysWOW64 folder

  5. I tried to repair Windows 7 boot from the windows 7 installation DVD and run the option repair (no problem found)

  6. I tried to pass the parameter registry WOW64 (for MSIServer) from 1 to 0 (I found this in one of the suggested solutions) [and later again back to the original value 1]

  7. I tried to 'force' windows to ignore the msiexec for 64 bit (in the system32 folder) by renaming and by identifying the msiexec for 32 bit 9 in the sysWOW64 folder) and update the path regsever C:\Windows\system32\msiexec.exe \V to C:\Windows\syswow64\msiexec.exe \V

  8 - I disabled my firewall and antivirus

  9 - I did everything above in many variations with reset (both the save option - reboot)

  -in fact, I could do things more I can't remember.

  Unfortunately a recovery is not an option most, because I guess I tried too many things and my view of the possible return is a point in which my computer was already in place...

  I tried to involve as well a representative of Microsoft support explaining my dilemma, but only made e-mail a generic response on this same forum (great customer service!).

  While I was actually pretty happy in the last 4 months with my new Windows7 (and thus Office2010), I am now reaching the point where I fell like throwing finally the towel and kiss goodbye to Microsoft. I was seriously considering to move to Apple before decide me in February favor some cheaper hardware to continue with Microsoft and the new Windows7. But this experience not being able to fix my computer after spending nights in the search for solutions and not be able to get support from Microsoft disgusts me.

  Now I wonder if there is someone out there who could help me out here...

  Of course, the .msi applies only to installers .msi, which was my mistake for which I apologize.  Regarding a clean installation, the fact remains that you have faced this anomaly for several days, a clean install, despite the pain, would be a distant memory now.  This is my personal opinion, not Microsoft, they me disavowed a long time ago, in all cases MVPS have nothing to do with Microsoft, although the price is published by Microsoft, it is awarded for the caregiver, or in this case try to help others.  It is good that I can at least allow you to vent, it's better out there that maintenus kept bottled upward, no matter how hard it seems to fix the problem, it will be resolved in your favor by subsequently, one way or the other.

  In pursuing the side of permissions of things you can try that if you wish.

  This example may or may not work for you, with your program?

  "It seems that the"Run as Administrator"command gives you administrative privileges only, and they are not enough to install Java (and OpenOffice, by association). To work around this problem, you must actually connect to an administrator. Open a command prompt with admin rights by clicking Start, type cmd in the search/run box, hit CTRL-SHIFT-ENTER. At the prompt, type:

  NET user administrator / Active: Yes

  Then disconnect from your regular account and record as an administrator, you should be able to install the program. When you are finished, open a session to your regular account and, for security reasons, disabling the account administrator for assistance:

  «net user administrator / active: No.»

  http://user.Services.OpenOffice.org/en/forum/viewtopic.php?f=15&t=11706#p55879

  See if this program you can tell what is happening with the failure of the Office to install.

  Process Monitor v2.8
  http://TechNet.Microsoft.com/en-AU/Sysinternals/bb896645.aspx

  Process monitor Forum
  http://Forum.sysinternals.com/forum_topics.asp?FID=19

  Need tutorial for Process Monitor
  http://Forum.sysinternals.com/forum_posts.asp?tid=13724

  If it was purchased through the Office Online web store?

  If so, you may need to return to this site at http://office.microsoft.com/en-us/products/ click on the link buy Microsoft Office 2010 today.   Then click on the buy now button to your product...  When you arrive on the "Items in your shopping cart" page, look for the link to the FAQ at the top of the page.  Click on FAQ.  When it opens do scroll to 'Customer Service '.

  Customer support

  What is your refund policy?

  Microsoft products purchased through the Office Online web store are eligible for return within 30 days of the purchase date. Taxes paid will be refunded on eligible returns.
  Among the exceptions to this return policy: Microsoft backup CD/DVD are not refundable and are not included in our 30 day guarantee.

  How can I request a refund?

  To obtain a refund for digital product please click here {web page link} to access your order history information. Click the Order Details of the order for which you want to request a refund. Use the option «back»

  When will be the reimbursement of the credit?

  Your refund credit will appear on your credit card within five to seven working days after we receive your letter filled with destruction. If a different payment method has been used, the duration can vary.

• How can I empty the Windows installation on my hard drive?

  How can I empty the Windows installation on my hard drive, please?  I was going to re - install, then I changed my mind.
  Now, every time that I reboot, instead of launching Windows XP Pro, it try to run Windows installation.  The installation program appears as a second menu item under "Windows XP Pro" on the black screen at launch.

  How can I remove it from the startup screen and flush it out of my system?

  Any correction, automated for this?

  Thank you.

  It is difficult to determine what you did, but the symptoms you describe can be eliminated by editing the boot.ini file (you can also make things really difficult if you make a mistake when you edit the boot.ini file, so be careful).  Will not be "flush out the Windows installation" of your system, but it will stop the menu from appearing at startup time.

  See http://support.microsoft.com/kb/289022

  Your boot.ini file probably has a second line in the [operating systems] section.  Make sure that you delete only the line that points to the installation routine.

• "Could access the Windows Installer Service" when you try to install codecs

  The Windows Installer

  When I try to run the codecs of corel, the following alert appears:

  The Windows Installer Service could not be accessed. This can happen if yor are running windows in safe mode, or if the installer of the window is not installed correctly. Contac your support staff, assistance.

  Can someone help me out here. I'm still trying to run a dvd on my WMP movie, but no codec plug-ins introduce yourself. Prior to that, I get another warning:

  Windows medal drive has not been closed properly. A damaged or incompatible plug-in could have caused the problem to occur.

  As a precaution, the plug-ins optional have been disabled.

  Hello

  I suggest you to follow the steps in this article and check if it helps:

  http://support.Microsoft.com/kb/315346

  It will be useful.

• Error "the Windows Installer Service could not be accessed. This can occur if you are running Windows in safe mode or if Windows Installer is not installed properly. »

  Crazy became Windows Installer

  have windows Xp Sp 3 and when I want to uninstall or install a program error message appears saying that "the Windows Installer Service could not be accessed. This can occur if you run Windows in Mode safe mode or if Windows Installer is not installed properly. Contact your support team. "and I are not in safe mode when I try to install or uninstall programs.  I checked for a virus and found that none please help because I want to uninstall some programs to free up disk space.

  Original title: Windows Installer Service could not be accessed error during installation or uninstall a program

  Hi, Honorine,.

  Follow the steps listed in the following article:

  Error message when you try to add or remove a program on a computer that is running Windows XP or Windows Server 2003: "the Windows Installer service is not to be accessible.

  See also:

  Problems installing and uninstalling programs on Windows computers