Download and install a NEWER version of the Platform SDK and make VC point at the new libs and headers - your problem will be solved. The original VC++ headers and libs were out before some of these newer functions, so it is not found in the WinSvc.H that you posess. If you DO find it in your header, check for it bracketed by a WIN32 definition. You need to do something like #define _WIN32 0x0501 or some such value to make it visible. They did this so you could target backlevel versions of OS with a build and be warned if you were 'linking' to functions that did not exist at the time. Any sufficiently gross incompetence is nearly indistinguishable from malice.

Silly question.... Have you actually installed your service, if so how did you do this ? It does sound like this hasn't been done, you must install the service correctly first. Darka [Xanya] "I am not a slave to a god that doesn't exist."

You could use .Net Remoting for inter process communication. Whenever you want to fire an event from process 1, call a method of process 2 by remoting and then in that process 2's method invoke an event. This will be more secure and better approach to trigger an inter process event. Regards Khalid