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VB Forum / COM / June 2005help please --- how to unload activex exe when client crashes
Dear All, I have a singleton ActiveX EXE server made in VB. When the out of process VB clients release the object, the ActiveX exe gets unloaded properly. My problem is only when any of the clients abruptly crash. It does not release the reference and the ActiveX exe, is never unloaded. * How can I gracefully detect from the server that the client no longer exist? * How can I unload the ActiveX exe, without abruptly killing the process? What is the method followed in such situation or any API can do that? Regards, Jim > Dear All, > [quoted text clipped - 13 lines] > Regards, > Jim If it shows in the "Applications" tab in TaskManager, you may be able to find the window and shut it down externally. Basically, yank its plug (kill the process), it's a bit tougher if it only shows in the "Processes" tab but still possible. There's several "Process Related" samples here that may help... http://www.thescarms.com/vbasic/VBProcessRelated.asp If that AxEXE's linked to multiple exe's, it can get tricky. If it's just for 1 exe, a decent way to let it kill itself is to raise an event every second or so that passes a ByRef argument. The client app can change the contents of that and return. If it comes back without any change, you know there's no client listening. At that time, you can release all objects, close forms, stop timers, whatever and the AxEXE should die on its own.  SignatureKen Halter - MS-MVP-VB - http://www.vbsight.com DLL Hell problems? Try ComGuard - http://www.vbsight.com/ComGuard.htm Please keep all discussions in the groups.. Thank you very much Ken. It helps a lot. Jim >> Dear All, >> [quoted text clipped - 28 lines] > there's no client listening. At that time, you can release all objects, > close forms, stop timers, whatever and the AxEXE should die on its own. |
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