How can I launch ILDASM from the VS.NET 2003 IDE?

Launch VS.NET and choose Tools->External Tools->Add and add settings as show below:

Title: ILDASM (or anything else of your choice)
Command: C:\Program Files\Microsoft.NET\SDK\v1.1\Bin\ildasm.exe
Arguments: $(TargetPath)
Initial Directory: $(TargetDir)
Use Output Window: unchecked
Prompt for arguments: unchecked
Close on exit: checked.