Here are a set of External Tools that I like to have at my fingertips in Visual Studio.  First, select the Tools menu and click "External Tools ...", then add these entries:

Title: ILDasm
Command: C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\Bin\ildasm.exe
Arguments: $(TargetPath)
Initial Directory: $(TargetPath)
Close on Exit: Checked

Title: Reflector
Command: C:\Temp\Programs\Dev\Reflector\Reflector.exe
Arguments: /FontSize:12 $(TargetPath)
Initial Directory: $(TargetPath)

Title: Guid Gen
Command: C:\Program Files\Microsoft Visual Studio 8\Common7\Tools\GuidGen.exe
Arguments: Blank
Initial Directory: Blank
Use Output Window: Checked

Title: Install in GAC
Command: Gacutil.exe
Arguments: -i "$(TargetPath)"
Initial Directory: C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\Bin

Title: Remove from GAC
Command: Gacutil.exe
Arguments: -U "$(TargeName)"
Initial Directory: C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\Bin
 

This site was last updated 11/19/06