If you're trying to compile VBScript in order to hide something like a password, you're probably doing it wrong.
This compiler is $49: http://www.xuebrothers.net/sh/sh.htm and has a free demo.
Any compiler for this language promptly turns it back into the plaintext script before running it, so you lose the benefit of obscurity against any determined attacker. If you absolutely won't pay for any of the compilers, your best bet might be to re-write it using one of the free visual studio basic variants, and compile that.
http://www.microsoft.com/express/
