Assuming .Net Framework 2.0(for file paths)

CorDBG.exe - command-line debugger, you can access it from SDK Command Prompt

found at C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\Bin

DbgCLR.exe - graphic debugger, (Trimmed down version of actual Visual Studio .Net)

found at C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\GuiDebug