control winforms application from remote computer

[C# Programming]

Hi All,

I'm looking for a way to control a winforms application from a remote computer. The situation is as follows:

I wrote a "headoffice" application, and there are 30 shops that use a client application. The headoffice has to be able to "take over" the client application (or computer, even better) from each shop.

I suggested using remote desktop or VNC, but the solution has to be foolproof, with no windows vista firewall questions for the user.

So is there a way to let my client application send screen information to the headoffice application, and accept mouse and keyboard events from the headoffice without having to install additional software? I already tested vncsharp, but without succes because it only supports being a VNC client.

All computers are linked up through a VPN and can "see" each other.

Thanks in advance for suggestions!

Jan