visual c++ - How to fix : "Microsoft (r) developer studio has stopped working" in VC6 -

i'm designing mfc interface application, throws following error:
microsoft (r) developer studio has stopped working

ex: if drag tabcontrol toolbar windows design area; when right click change properties , events, throws error:

how 1 fix it?
i'm using windows 7 ultimate x64.
i'm tried in windows xp , showed me same error.