I want to use dll of windows in an asp.net aplication.Can anybody suggest me how do i do it??

I'm sorry, when you say "dll of windows" what are you refering to?

Is it another .net DLL, or is it a COM DLL, or some other DLL.

For .Net DLLs al you need to do is put it in the "bin" directory. For COM it is harder as you have to use COM Interop to talk to the DLL. However this can often be done automatically using Visual Studio. Do a search for "COM Interop" to find lots of guides to this.

/- Sam Judson : Wrox Technical Editor -/