Problem solved by deleting the 'nbdrv.sys' file.
I did have this software a long time ago, didn't think it would leave some trash behind after I removed it.
Thanks for your help!
I'm being disconnected from servers with this message: VF # 33 NetLimiter (SeriousBit). I don't have this software and no other 'netlimiter' installed. What can I do to solve this?