Recently I was investigating using LESS on windows. I didn't want to do it at run-time a la DotLess, but at build-time. I wasn't able to install node.js so i had to scout around for other options...

I came across this: https://github.com/duncansmart/less.js-windows

It leverages the fact that windows has long supported running JavaScript (OK technically "JScript") outside of the browser, without node, to create a command line utility from the less.js implementation. Works perfectly :)