If it is indeed a M$ problem- maybe they should re-consider the use of that blasted Windows Installer. Been nothing but a headache since they started forcing us to use it. I'd rather see them expend development resources on SW bugs than working around M$ issues.
jk
You need to shut off the ends of your part. There are many different ways to do this. Depending on the part, either a simple cut-extrude or a cut-revolve will do it. If you are using a later version of SWX, then it ask you which body you want to keep. One thing you could do after you figure out...