Are we talking a laptop here? I believe that is where this program is typically found. It is basically the driver for a 56k modem that would be on that computer. So uninstalling it would probably render the modem useless, but who wants that slow of a modem anyway?
What's the exact file name that is taking up 15gb? Is it one file or a bunch of files that add up to 15gb? Are you seeing this number on the file(s) itself or in Windows Control Panel -> Add/Remove application ?
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.