Hi there,

I'm going to put a demo of our product up on our site. The entire software product is pretty big, but the demo is only about 100K. Or so I thought.

After compiling the damn thing, bundling the runtime dlls and all into one unit, it comes to 2.56MB. In this part of the world most people still use 28k modems so some people might be put off. It's all that Msvbvm60.dll and stuff, and about 6 other dlls, that take up all the space.

So here's my idea:

Before they download my demo I have a link saying 'For your convenience and to save you time...' or something. This downloads a small program onto their computer, around 10k or so.

When they click 'start' button on my program it searches their computer to see if they have Asycfilt.dll, Msvbvm60.dll, Mfc42.dll and others in their Windows System folder.

If these files are already in their folder then they will be instructed to download a version of my program that is much, much smaller.

If they don't have them in their System folder then they will have to download the 2.56MB version.

It seems like a good idea so my questions are:

1. Does anybody foresee any difficulties with this, and if so, what?

2. How do you check the Windows System directory for files?

Thanks!