what you do is you install esf, rename the esf folder to esf1.2 then install esf again, and install EVM into that folder too. Then when you want to play with one rather than the other you can change the name of the folder so whichever you want to play is /esf, because even if you make shortcuts to the games with different folder names, steam wont find esf servers if the directory esf is installed to isnt called ESF, and thats the same for evm too.
Hopefully that helped =]
