i am trying to run an application written in 2003.net in 2005.net editor.
I am getting error
fatal error C1083: Cannot open include file: 'windows.h': No such file or directory
Can anyone tell me how can i solve this problem.
You probably need to reset the include path to wherever the VS2005 include files are.
I don't know about the final version of .NET 2005, but the betas all required you to download the Platform SDK and didn't include windows.h.
Jordan is right. VS2k5E's start page has a link to both the download site for the platform SDK and instructions on how to integrate it with VC. ("View" menu, "Other windows", "Start page", if it does not show up on program start).