Solver -- limited by number of variables in constraints

[koochandkai]

I use the solver add in to solve simple linear programs. Although they are simple, they are too large to run in excel. Previously, I've changed how I set things up to meet the 200 variable limit, but I can no longer do that. When this has happened before, I got a message that I could buy something that would increase this limit. I no longer seem to get the message. Can someone get me started down the path?
As always, thanks much.

[MrShorty]

Perhaps you are looking for http://www.solver.com/

[koochandkai]

Thanks. Perhaps that was it. I was hoping there would be a less expensive, less comprehensive product.