This line of code creates a MapWinGIS.Image from a SnapShot and save it to a new file:
When filename is d:\snapshot2.jpg everything works but when it has no extention an infinite loop seems to accure and img.Save doesn't come back.
I found this issue when working on an unit test for MWGIS-79.
I created new unit tests to reproduce this error (see commit) and debugged MapWinGIS, but now I can't reproduce the issue anymore.
Also the original unit test (to save a snapshot) no longer fails.
So I'm closing this issue again.