http://proletsoft.freeservers.com/mmb/steeper.html

Features:
- Repair damaged files
- Join two or more files
- Cut out fragments from file
- Set attributes for file
- Play file

Steeper enables you to repair, modify, join and cut out fragments from ASF and WMV files. It is based upon and is using ASFCut, a commandline utility by RadioActive. Steeper requires Window Media Services at least with version 9.0.