OpenEvent fail when CreateEvent called from Service

[PABLOCABALLERO]

I apologize by my bad english.

I am creating and event handle from a program running as a service.
I am doing this calling CreateEvent with the following parameters:

CreateEvent(NULL,FALSE,FALSE,"EVENT_NAME")

When I call OpenEvent(EVENT_ALL_ACCESS,TRUE,"EVENT_NAME") from a COM component (after that the service is started and the call of CreateEvent) the return value of this call is NULL and GetLastError return 2.

Thanks for your help

[olivthill]

PABLOCABALLERO, you say that GetLastError() returns 2. This is ERROR_FILE_NOT_FOUND, and usually it is caused by a lack of privileges.

There is a question similar to yours at http://www.codeproject.com/threads/sharedmemipc.asp?select=443971&df=100, at the end of an article on Interprocess Communication. I let you read the answer.

I think you should call CreateEvent() with a first parameter indicating the security permissions you will grant.