I'm running Office 2000 professional and stupidly downloaded microsoft's service pack assuming it would improve things.

Amongst the updates is one for email security which once installed checks all attachments arriving in Outlook and grades them by type. It then refuses to allow any Level 1 items (ie .exe files) to be opened. The settings for this update cannot be changed and despite scouring the web (both Microsoft and some more dubious sites) cannot find any info on how to uninstall this update as I now cannot open any of the daft/funny/obscene attachments I seem to get sent regularly.

It looks like reinstalling Outlook is going to be the only option - ARSE! Anyone out there got any ideas???

Time to call in the Window cleaner I feel...

The only thing I can think of is reinstalling it, particularly if sites like http://www.windows-help.net/ and http://www.annoyances.org/ don't have anything on the problem.

Banana,
try looking in Control Panel, Add / Remove Programs. You should see the SP listed, and clicking on it will bring up an option to remove it.

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Once I was VERY good, now I'm very good, once!