I have a product which can be downloaded from the web. I am trying to
make the download time quicker. Does anybody know if 'msvcrt.dll' and
'mfc42.dll' are installed with Windows 95, 98, NT? If so, I can remove them
from installation and save my customers a few minutes.

Thanks,
        Mark Colbath

Question right back at you: which version of msvcrt.dll and
mfc42.dll? If you coded your app in VC 4.2, you *might*
get away with it. Any later version and you will almost
certainly find systems that need updated versions.

Bad idea. Instead create 2 installs, a lite install (for systems
already having these DLLs) and a full install (for systems that
don't)

In the lite install, check first thing for these DLLs. If they are
not found, let the user know. You might even then provide
a third download that only contains these DLLs, for people
who downloaded the lite version when they neede the full
version.

Besides Ron's good suggestion, you might also want to check if building your
program with the static linking libraries of the CRT and MFC might just provide
a single, relatively small download.

--
Tomas Restrepo

http://members.xoom.com/trestrep/