I appreciate the work you all put into this mappack but its size, especially of the exe file, is pretty big.
So please use 7-zip [1] for your future exe-files, 7-zip is licensed under the LGPL, so there shouldn't be any problems unless you intend to release a modified version of 7-zip with the target to earn money.
You could also reduce the overall size of compressed files a lot.
One of the famoust projects using 7-zip is Firefox [2] (the exe-version) from mozilla.org.
To create those exe files you should use UPX [3]
I hope that you consider those programs, allthough I've to admit that I don't know how to create installers and the like with it.
Thanks for reading,
Matthias
[1]
http://www.7-zip.org/
[2]
http://www.mozilla.org/
[3]
http://upx.sourceforge.net/