Patch v0.60: CWK AutoBan Glitch

Then, once it's extracted MapleStory.msi, I have about 1.3 GB free, which I know it less than the size required by the MapleStory folder.

1) Maplestory installer.exe (1GB)
2) MapleStory.msi x 2 (1.8GB)
3) MapleStory extracted to a temp folder as it installs (1.1GB) - I believe this is the point where it requires 3GB free to perform the step
4) MapleStory copied to install folder (1.1GB)

I don't know why it extracts the .msi twice but it requires both of them, so it needs 6+ GB to do an installation.