MIIS/ILM Error: System.BadImageFormatException

August 20, 2008

So I had MIIS 2003 SP 1 reporting to me that the format of my GalSync-Extension.dll is invalid. So I tried recompiling it – no luck. Same error. The only MSDN article on this indicated that unmanaged code is being passed to the load method.

Through trial and error we found the solution: stop and start the MicrosoftIdentityIntegrationService. If that doesn’t work try a reboot.

BadImageFormatException_screenshot

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