Bug 15375 – replace nsis installer by .msi installer

The NSIS installer system is quite dated, requires to write hard to maintain (asm like) scripts, necessary plugins are no longer maintained (and only available as binaries [¹]), and .msi installer are supposed to be better integrated with Windows [²]. [¹]: https://dlang.dawg.eu/downloads/others/ [²]: https://en.wikipedia.org/wiki/Windows_Installer Regarding different msi installers, we got a recommendation for Inno Setup. http://forum.dlang.org/post/[email protected] http://www.jrsoftware.org/isinfo.php

I agree the windows installer currently is pretty bad.!!!!

THIS ISSUE HAS BEEN MOVED TO GITHUB https://github.com/dlang/installer/issues/681 DO NOT COMMENT HERE ANYMORE, NOBODY WILL SEE IT, THIS ISSUE HAS BEEN MOVED TO GITHUB