If you have ever had to support, or use an Exchange server that uses RAS to send and retrieve email, and is used as a workstation by users (I can see people cringing, but I see this in a lot of small sites and small businesses) you will know the frustration of loosing your connection every time you log on as a different user.
To make matters worse, half the time the problem with these types of sites, is that there actual connection problems.
When you log on as a different user in NT4.0, it terminates the connection. Users of VPN’s will have come across this problem as well.
To resolve this problem, it’s a simple registry entry.
HKLM\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Winlogon, add the value entry KeepRasConnections: REG_SZ: 1, and reboot the server
This value is not entered by default. Now that’s resolved, you can concentrate on more important things, such as how to convince management to buy more PC’s so the users don’t use the server as a workstation