Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

now this is really annoying - I'm having a global problem in Windows 7: when using the system's "save as"-file dialog, the main app will just hang.

the mouse-cursor is showing progress, the whole app is hanging and I need to terminate it manually. it's happening with every app! (notepad, word, graphics app). I'm assuming it's something with the system enumerating the harddisk-drivenames or something. any idea how to fix this?

by the way - when viewing the problem details - it's telling the module - it's msonsext.dll, looks like some office thing to me.

share|improve this question
msonsext.dll seems to be related to Sharepoint. Do you use Sharepoint or try to save files to it? If you rename msonsext.dll to does the Save As Dialog stop crashing? What about when you unplug your computer from all networks, issue go away? – Kerry Jan 30 '11 at 19:26

Removing / Renaming msonsext.dll fixed this for me. Now I wonder what the correct fix is.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.