WORD OF WARNING,

Having guessed the right answer I then decided to run it on our SQL 2005 (production) server.

After restarting the service this line was found in the log.

11/08/2011 08:13:34,spid80,Unknown,SqlDumpExceptionHandler: Process 80 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process.

11/08/2011 08:13:34,spid80,Unknown,***Stack Dump being sent to E:\Microsoft SQL Server\MSSQL.1\MSSQL\LOG\SQLDump0007.txt

11/08/2011 08:13:34,spid80,Unknown,Using 'dbghelp.dll' version '4.0.5'

Guess that will teach me not to use the test server :Whistling: