COM DLL METHOD SLOW IN WEB APPLICATION BUT FAST IN WINDOWS APPLICATION
We have developed an application using ASP.NET/C# which uses COM api. We figured out that API methods are relatively slow in Web Application but the same code, same method if i try to use in a window based application, it is extremely fast. Please let us know, if what could be the reason.
I can't think of any reason, but to help you identify your case...
are you using C# to access a COM dll using COM interoperability, or to access a legacy (native) dll (for instance win32 API)?
well... COM interoperability works fine for me and I've never heard of any problems. Of course calling a COM object is not as fast as calling a .NET object, since interoperability adds some overhead, but what you are talking about seems to be something else.
I think you are going to go deeper to find your answer. Try for instance some code optimizations. If you are using the COM object inside a .NET loop, try to transfer the loop inside your COM object to minimize the call overhead.
The COM DLL is a third party supplied developed in Visual Basic. The DLL Which if try to use in ASP.NET Web Application is slowing down rapidly. But the Same operation if i try to carry out in ASPorVB it is extremely fast.
I thought that the delay might be due to the interop which creates that delay. But i tried with sample .NET windows application which uses this interop dll and executes extremely fast.
I am wondering that interop Dlls will it behave differently for Web and Windows based applications.
Please throw lights on my thoughts.
