Mmmm... does he want the .zip file or the installer.exe? I ASSume the "installer" is self-explanitory(?). I created an "installer" once... I considered it a joke, actually - there really isn't much to "install". I think it ended by dumping you off in the Friendly Manual, whether you wanted to or not!
The Manual will cover "installation":
http://www.nasm.us/doc/nasmdoc1.html#section-1.3.1While you remember how to set environment variables, you might want to look at the NASMENV variable:
http://www.nasm.us/doc/nasmdoc2.html#section-2.1.28You don't need to use this, but it can come in handy to set "default" command line switches - particularly, locating "%include" files without having to have the full path in the .asm file or typing it in on the command line every time. You may want to leave this for later, but keep in mind that it's available.
I don't think the Manual will tell you how to get a cmd prompt. "start->run->cmd" used to do it. There may be preferable methods. This isn't a "Nasm question", of course, but an "OS question"... but I can't see sending you off to Microsoft just for that...
Then, you'll need a file to assemble. I guess XP still supports dos, so a dos .com file will be easiest. This one will do...
http://home.myfairpoint.net/fbkotler/clueless.htmlThat's old and lame, but still works. To do anything more "modern" than a dos .com file, you'll probably want a linker... and that's a whole different question. You may want to look into the "NASMX" package...
http://sourceforge.net/projects/nasmx/... and just go with what's there...
Best,
Frank