How can I set up a server to allow multiple remote connections?

would the windows server allow people to simultaniously work on say, an access file?

yes they can work on the database at the same time.
however if that is the only reason you require a server with multiple users i would reccomend approaching the issue from a different angle.

 i will add a quote from wikipeda on microsoft Access

http://en.wikipedia.org/wiki/Microsoft_Access
Microsoft Access can be applied to small projects but scales poorly to larger projects involving multiple concurrent users because it is a desktop application, not a true client-server database. When a Microsoft Access database is shared by multiple concurrent users, processing speed suffers. The effect is dramatic when there are more than a few users or if the processing demands of any of the users are high. Access includes an Upsizing Wizard that allows users to upsize their database to Microsoft SQL Server if they want to move to a true client-server database. It is recommended to use Access Data Projects for most situations.

j0sh

The built in remote desktop feature out of the box only allows two simultaneous users to connect to the server via Remote desktop.  You have to install Terminal services and purchase TS licenses to allow more than two.

Yo could use a third party application like VNC (http://www.realvnc.com/products/free/4.1/index.html), Netsupport (http://www.netsupport-inc.com/) or pcAnywhere.

If file sharing is your only goal however, why couldn't the users simply access the file over the network?

hi pb,

the reason im not using even VPN is because some files are too large to view/save through the internet fast enough.  By logging in directly, will be much faster viewing/saving.  Only 2 be default?