If you get “Unable to Attach to Process” inside Visual Studio 2003 when trying to attach to a BTSNTSvc.exe process for CLR type debugging, if .NET Framework 2.0 is installed on the machine, add the following to BTSNTSvc.exe.config:
<startup>
<requiredRuntime version="v1.1.4322" />
</startup>
I know I've seen this posted somewhere before, but had a hard time tracking it down again. ...means one more posting is needed IMO.
Later!