http://support.microsoft.com/?id=291392
Q291392 - INFO: Excel COM Add-ins and Automation Add-ins

http://support.microsoft.com/?kbid=238228
How to build an Office 2000 COM add-in in Visual Basic

http://support.microsoft.com/?id=256624
HOWTO: Use a COM Add-In Function as an Excel Worksheet Function

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HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my addy)

"Peter Ostermann" wrote in message
...
Hi NG,

question especially MVPs:
The protection for VBA code in Excel application is notoriously week. It
is said, that only a com-addin could help. For MS it is or would have been
easy to supply such an addin. Where could it be found?

Regards
Peter Ostermann