Exhaustion of the handles to change notification (SMB requests)

I run an app, Matlab, on winxp 32 sp3, that internally uses Exchange requests for notification on a good amount of directories and a good amount of these directories are remote (lan) on a 64-bit win7 machine. When I start the application it tells me I ran out handfuls of change notification. To find out if this problem is due to me or to the remote computer, I ran a matlab with the same needs of remote path on another computer win7 and observed no problems with missing remote handles.

Thus, it seems that the problem is on my winxp computer (client). Googling around, I found this http://support.microsoft.com/kb/926646. It is said to add some values/parameters in the registry to get xp to increase its ability to change notification, but he also asked a fix that would get the xp to use these settings (see below). However, when I tried to install the patch it said would not because my OS being sp3 I guess, was newer than the fix. I guess that means that sp3 already has the ability to interpret parameters.

Unfortunately, after changing the settings, nothing has changed. From what I can tell, there is no increase in the number of remote change notification requests it can handle.

Although a solution would be preferable, it would be useful, even if I knew how to see what the values of the operating system of use; to see if she was, somehow, made up of the parameters, I added to the registry.

= relavent parameters:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters]... "MaxMpxCt" = dword:000000ff

"MaxWorkItems" = dword:00000400


[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanworkstation\parameters]... "MaxWorkItems" = dword:00000400

You're probably better to ask you question in the TechNet forums.

http://social.technet.Microsoft.com/forums/categories/

Tags: Windows

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