How do I kill a rollback process when I want to drop the database? I want to drop a SQL Server 2008 database, but it is currently performing a rollback for a transaction (that transaction took 3 days to run so far).

How do I stop the rollback because I want to drop the database?

Thank you.
In short you can't. You have to wait for the transaction to rollback before the locks are released. 

I suppose you could stop the SQL service and delete the database files. Then when the instance comes back online delete the suspect database.  But this requires an outage and that you are very sure you are deleting the correct files.