I'm offering an option to reset the replication by deleting the subscribers + publication by rmo. So far it works without problems, but as I changed to use an domain-ad-account instead an of a sql-login, the replication seems to stay somewhere in the cache...
When I refresh in the SQL Server Management Studio the "Local Publications", the publication is gone, but when I launch the "Replication Monitor" the publication is still accessible and I can view the snapshot agent-history, too...
so, is it a bug or a feature?
EDIT: It just occurs to be a problem, when you try to delete the database after you deleted the publication. If you set up the publication again, it seems to work without problems.