Forefront for Exchange: FSCController Service doesn't start

Hello,

I've setup a new environemt of Exchange 07 SP1 on Windows Server 2008
Standard with all updates.
Now I installed Forefront Security for Exchange Server V10 SP1 (for
Exchange07, Win2k8) and it runs fine, until I do my first restart after the
installation.

The FSCController doesn't start at system boot and therefore all the
depending Exchange services don't start either.
There's just the following error (nr: 7022) in the system eventlog:

The Service (FSCController) didn't start correctly.


However, when I start the Exchange IS Server manually (FSCControler depends
on it), all services inluding FSCControler are started without problems.

Does anyone has a solution for that?

Thank you very much!