Network a Mac laptop with windows PC's
Currently, we are using a program called folderShare, its very useful, quick and has done what we needed it to do. It allows the 4 computers in this office to just share things when we need too. Although the boss wants the quotes ect to be shared all the time and accessible by all. The problem is 3 of the computers are windows, which i know how to network, although my question is, is it possible to network the Mac laptop with the windows pc so when its in the office it can access the folder also.
Is this possible, and what is the best way to do it?. If not do i need to run to the shop and buy my boss a windows laptop :).