The assembly 'LAPI_SSPIp' could not be loaded

Kristy_Shen

I'm trying to deploy a LAPI application that was written in ASP.NET C# to a test environment. But I get the 'the assembly 'LAPI_SSPIp' could not be loaded" error. Please see attached. Anyone have any insight into this issue?

Louis_Routhier

I found the solution to this lately after a couple a years wondering: C dlls dependencies.In fact, the solution may vary depending on the way you're using LAPI. If you use direct connect through LLServer port, then you could simply delete LAPI_SSPIp.dll.On the other hand, if you use HTTP tunneling, then you need to copy LLKERNEL.dll and LAPI_BASE.dll somewhere your application could find them. If you copy the dlls in the bin folder, then simply put the dlls there but if you'Re using a signed version of LAPI in the GAC, then you need to drop them somewhere in a folder listed in the PATH environment variable. A good place is system32 but you need Admin rights to write there.Hope this helps.