In ADR 2011, we are no longer able to open DWF files by double-clicking on the file. Does anyone have a fix? (Running Win 7)
Thank you for your question.
You can try below soluion steps to see whether is helps:
1. Uninstall Design Review via Add/Remove Programs
2. Delete this entire folder:C:\Program Files\Autodesk\Autodesk Design Review
3. Delete this entire folder: C:\Program Files\Common Files\Autodesk Shared\DWF Common
4. Delete your user preferences file:
C:\Users\[current user]\AppData\Roaming\Autodesk\Autodesk Design Review\11.0\userdata on Win7
5. Install Design Review again.
Please let me know if this suggestion is helpful or if you have any follow-on questions.