Try to set the access rights on the your addin's registry key in
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Outlo ok\Addins
so that only admins can delete/modify entires there.
Also note that unless the current user is an admin/power user, it will not
be possible to modify *any* registry key in HKLM, so your add-in will stay
enabled.

Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool

"PS" wrote in message
ups.com...
So then does anybody know how we can hide the addins from the Trust
Center. I have an addin which is absolutely mandatery to be running at
all times. In Office 2003 - we hid it from there (so users dont
disable it) by HKLM.

How do we do this in Office 2007 (not allowing users to disable it)

Thanks