When I zipped a small app I made that runs a picture show, I just zipped the EXE file. That SHOULD be all that you need, but not with VB. You need MSVBsomethingrather.DLL and a NEW version of OLEAUT32.DLL and then you still get ERROR 50003. That's right. fifty-thousand and three. What the heck is that? Is there a set of DLLs or whatever that are needed to be packaged in a ZIP file to run my compiled software?