The following command line brings up all instance names and asks to select
an instance and then a few button clicks.
C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\ARPWrapper.exe"
/Remove
Ensure you have backed up registry settings PRIOR to running the code.
For more information , check: http://support.microsoft.com/kb/909967
Ref:Jack Vamvas (http://www.sqlserver-dba.com)
