Thanks, that's the first time I hear of that error or that it required that much space.Awesome job with the updating tool! Did you work on it or was it a premade one? Just wanted to point out that it could appear as an update successful result while failing due to not enough space so you may want to escape that error too. Just a heads up for everyone patcher require about 6 gigs of free space to work.
I made the patcher myself. It is using Windows cmd.exe and Java's jar.exe to do the actual adding/overwriting of the files, just calling the proper commands. I figured that was the easier and faster way to do it, rather than coding it directly in java. The drawback is that I don't have any control of the process once started.