Ok, I'm gonna try the (possible) easy solution: compiler's problem.
What compilers/environments/whatever_you_call_it do you most recommend?
My system is Windows 7 with language selection turned to English, yet it is originally set in Mandarin Chinese.
Some element-deleting list functions
Re: Some element-deleting list functions
run-time: happens when you run the program, after it has been compiled.
compile-time: during compiling
the program is not compiled because an error occurred while attempting to do it
compile-time: during compiling

Re: Some element-deleting list functions
I don't have any experience with commercial Lisps, and all of my experience is roughly limited to SBCL and CLISP. They both worked for me under Windows 7 and Linux, different versions. I don't have enough experience to judge about which is better, however it seems that SBCL has more users / it's easier to find help on SBCL-specific issues then other Lisps, but maybe it's just an impression I've got. I think I followed this article http://www.pchristensen.com/blog/articl ... indows-xp/ when I needed to set up my Windows machine (although, pay attention that download links in the top of the article will be dated, you'll need the same programs, but new versions).
[OT] Lisp-"Environment"
For Windows I arrived at http://lispcabinet.sourceforge.net/. It's some kind of "fire-and-forget"-installer. It comes with Emacs and during the install-routine you can choose to install additional Lisps, no other configuration required. I run it under Windows 7 64bit.