This was on the win-tech-off-topic mailing list:
A macro to automatically attach to aspnet_wp.exe, written by Kevin Dente can save lots of clicking around time:
<quote>
Sub AttachAspNet()
Dim process As EnvDTE.Process
If Not (DTE.Debugger.DebuggedProcesses Is Nothing) Then
For Each process In DTE.Debugger.DebuggedProcesses
If (process.Name.IndexOf("aspnet_wp.exe") <> -1) Then
Exit Sub
End If
Next
End If
For Each process In DTE.Debugger.LocalProcesses
If (process.Name.IndexOf("aspnet_wp.exe") <> -1) Then
process.Attach()
Exit Sub
End If
Next
End Sub
Unfortunately, it's not perfect. Process.Attach doesn't let you
specify the program type (CLR, Script, native, etc). I think that it
uses whatever your last selection was in the UI. But don't quote me
on that, it's been a while.
</quote>