Hi

You can compile all the class to dll without Visual studio.

In this folder:

C:\Windows\Microsoft.NET\Framework

You can find all the .net framework version. include v3.5.(if you installed vs2010 it will have )

Use CMD.exe to excute

MSBuild+ your project file.

Example:

C:\Windows\Microsoft.NET\Framework\v3.5\MSBuild D:\VSProject\ASP.NET\ClassLibrary1\ClassLibrary1.vbproj

(You can use notepad open the .csproj file and change all 4.0 to 3.5)

Also if only one class you can use C:\Windows\Microsoft.NET\Framework\v3.5\vbc.exe D:\....class path....

If you don't have  v3.5 folder you can install a .NET 3.5 framework.