porting a web application from one to another machine

Thanks, Mahesh. I found that it really needs a third party dll. The original developer didn't memtion it.

Thanks, Ryan. Do you know the best way to do it?

Thanks, Mahesh. It is really development machine. I copied the project folder from windows server 2000 machine to the windows server 2003 standard machine. I use .NET to open the project and build it. It is OK. When I run it, everything is OK except treeview. This project is a web server. The page is created by asp.net. some sample is shown below ( the format is not same as my original one):

It depends. Is this a development machine or production? If its a development machine, you probably can copy everything from one machine to another and open in a tool like Visual Studio and should be able to build it. Question is - Does the application needs some third party controls or DLLs or has any more dependencies? Also, what is the application written in? Simple HTML or ASP.NET or what? Need more details.