Outlook update - Word as e-mail editor

After applying the 11 July 2007 Windows update package (Windows XP)

outlook.exe appeared to have been moved to a different place (?) and

Outlook2003 cannot start Word2003 as e-mail editor. Reseting Outlook options

and Office repair does not help nor does Checking/repairing registry errors

and defragmenting registry (by Registry First Aid). Un-applying Windows

update no option.

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Hesseldahl