So you're trying to create a "Software Library" almost, where users can install their own software by clicking a link on a page?
Just trying to make sure I'm getting it.
If that's the case, you may have to use SharePoint designer to modify the actual link, but try something like,
<a href="\\DangerServer\Downloads\MyVirusArchive.exe"
type="application/octet-stream">Don't download this file!</a>
Where in the file reference is the switch.
Brandon James SharePoint Developer/Administrator