Download file

After I check to see if a computer has the .Net Framework I would like to download the framework (if they dont already have it installed) from my website where I have a copy and run it.

Is there a way to download a file?

http://forums.winamp.com/search.php?...der=descending - "http" search results
NSIS archive http://nsis.sourceforge.net/archive/...nstances=0,110