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CreateMailslot fails twice a day when Symantec Endpoint Protection is active

Created: 10 Apr 2011 • Updated: 05 May 2011 | 1 comment
This issue has been solved. See solution.

Sorry, I'm not sure if this is the right place to ask a question...

I'm running a windows service collecting measuring data from io boards. The data is collected from the windows service by several other windows processes. The interprocess communication is handled through windows MailSlots which are created/opened when used. 

Operating system is windows XP SP3.

Due to company restrictions a Symantec Endpoint Protection has to be installed on the system.

Here comes the question:

Twice a day the windows API function CreateMailslot fails (ErrorCode: No Handle Available) when Symantec Endpoint Protection is active.

* Dues Symantec Endpoint Protection hook mailslots ?
* Any ideas ?


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Vikram Kumar-SAV to SEP's picture

This can be due to Application & Device Control feature of SEP. Go to add/remove programs Modify SEP and remove App & Dev Control..

Vikram Kumar

Symantec Consultant

The most helpful part of entire Symantec connect is the Search use it.