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IAS Extension DLL deadlocks when mscoree.dll loads the CLR

I'm trying to write an IAS Extension DLL using some managed code to do
the authentication. I've created a mixed-mode DLL, as IAS need
standard DLL export functions called RadiusExtensionInit,
RadiusExtensionProcessEx and RadiusExtensionFreeAttributes.

Everything works OK on Windows 2000, but when I use Windows Server
2003, it gets into a deadlock immediately after loading MSCOREE.DLL.
This seems 100% repeatable on both machines I've tried.

I've applied all of the "fixes" I can find to known problems, including
KB814472, but these have had no effect. I have also tried static and
dynamic loading of this DLL, e.g. by calling LoadLibrary("mscoree.dll")
- this also gets into the deadlock.

My assumption at the moment is that the CLR calls back into the same
process as IAS runs under, hence the deadlock.

Has anyone got this working or has any suggestions? At the moment the
only option I have is to re-engineer the code in C++.

Nov 17 '05 #1
0 1043

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