[Wine] How to run mulitple instances of app, each for unique IP?

I have a windows application that can listens on an IP address for batch data 
to process.   The application works under WINE.  The application does not take 
advantage of multiple cores of the CPU.  I want to configure the Linux PC to 
listen on four IP addresses (which I know how to do), and then run an instance 
of the wine app for each IP address.   In this way, I can take full advantage 
of a quad-core CPU.  

Does anyone have suggestions/pointers on how to proceed?

Thanks!