SEP12 and Office 2010 send mail problem

Hello

We have a strange problem here on some computers (W7 Enterprise 64bit). After installing SEP12.2 its not possible anymore to

use the "Send to email" function out of Office 2010 applications (word or access). We get the error, that there is no email program associated for the required action. (translated from the german error msg). Reinstalling SEP11 solves the problem.

SEP11 has the mail scan components installed, SEP12 doesnt.

All computers using Lotus Notes 8.5.3. All computers have the protocol "mailto" not asscociated with any application.(as seen in "Set your default programs"). "Send mail" is associated with Lotus Notes.

Any idea where to start looking what causes this problem?

Thanks

Andreas