Running multiple instances of the same program

[Gasp0de]

Hi everyone,
i have the following problem:
I have a program, that i need to run in wine. It is unfortunately very badly programmed, and it is supposed to be used like this:
It's supposed to be installed on one PC, inside a windows share (samba share), and can then be launched by multiple users at the same time via the network. Unfortunately, this does not work very well with more than 3 clients. The developer of the program told me to buy a server and run a windows terminal server. This is ridiculous, as it will cost around a thousand bucks, just to run 3 clients. So I want to run the program on a server running xubuntu 14.04, and use Xdmcp to remotely log into the server from multiple clients. The problem i have right now, is that i can't figure out a way to run the same program multiple times with wine. I found ways to do it with different folders/wine prefixes, but i need all of the instances to work on the same data/directory. Will this be possible by running wine with multiple users and thus multiple .wine directories, and having symlinks to the program directory? How exactly does wine determine if it is already running?

Thank you very much for your help,
Gasp0de

[Gasp0de]

I'm very sorry, i have not read the FAQs before i posted . It seems that what i need can be done by using different prefixes to run the same program in the same directory. I will post again if this is not what i was looking for.

Gasp0de