Sriram's WebLog Microsoft solution specialist on web platform, Columbus Ohio

Sriram's WebLog Microsoft solution specialist on web platform, Columbus Ohio

August 2004 - Posts

Dllimport from aspnet application hangs

What you will do when you do not get any error message but your web application simply hangs. That is what happened to me last week when I tried the following.

As our application design requires us to use one of the validation API engine which was written on C(so basically all I have is a dll) and I tested calling the functions using small windows application using DllImport for each functions and it works without any problem. But when I try to use the same Dll in my asp.net web application, it hangs with the first call which is init function call. I tried giving the dll path as a hardcoded path like C:\<application directory\bin>validation.dll in my dllimport funciton call but did not help. I am wondering it has something to do with ASPNET account security. So I gave full control for ASPNET account for my application directory and still my application hangs. I even tried copying the dll file into system32 directory but no hope.

Anybody faced this earlier?

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