This is helpful for users who want to use TeXmacs in Windows computers without admin access, like in college libraries. This is trivial to implement as well. Just upgrade to Inno Setup 6 to take advantage of Non Administrative Install Mode. I am able to create an installer without admin right to install by adjusting the TeXmacs.iss script. I hope official installer can have this feature as well. Would like to help out if help is needed.
PS: pls update compile guide. It took me a long time to compile TeXmacs. Have to install jasper and correctly configure Qt to compile on Windows.
I am on the mailing list. More comfortable speaking out here though :D.