Right. The issue is, let's say you have a site hosted by XYZ Hotshot
ASP.NET Hosters. And you have a SQL Server Database there and (usually)
some sort of control panel (web based). Problem is, it's shared hosting
so you don't really have physical access to the desktop to install VSS
or any other software. You are basically restricted to your SQL Server
database and your IIS Applications to make it work.