Neither the bttray.exe nor wbtapi.dll are native Outlook files.

Examine what addins you have that integrate with Outlook, remove them, and
try a repair installation of Outlook.

Failing that, uninstall the applications that use those files, reboot, then
uninstall Office and reboot again. Then try the install of Office again.

--
Milly Staples [MVP - Outlook]

Post all replies to the group to keep the discussion intact.
ALWAYS post your Outlook version.
How to ask a question: http://support.microsoft.com/KB/555375


After furious head scratching, Rob Derby UK asked:

| My PC crashed so I had to recover it. Have installed Office 2003 and
| Outlook is not lettign me set up the accounts. When I go toolsemail
| accounts I get "the operation failed due to registry or instalation
| problems" Have used the repair tool andf have also doen a full
| uninstall and re-install. When I restart my PC I get"unable to locate
| component BTTRAY.EXE and then his application has failed to start ( I
| don't know which one)because wbtapi.dll was not found. Thanks