You have more than one solution, so what's the problem? Either shift the games to a larger drive/ partition, or use the Junction program. Anyway, as Russinovich points out-
"Unfortunately, Windows comes with no tools for creating junctions—you have to purchase the Win2K Resource Kit, which comes with the linkd program for creating junctions. I therefore decided to write my own junction-creating tool"
Maybe if Microsoft were more on the case, you wouldn't have to download another application to do the job.