Visual LISP, AutoLISP and General Customization

[#1]

I recently moved to using a Mac, and AutoCAD for Mac doesn't include the changespace command. I am hoping to work around this by using the LISP for changespace. However, I can't find it on the internet. I remember it used to be available, before AutoCAD incorporated Express Tools into its core software. Does anyone out there perhaps have a copy of this LISP floating around? I would love to be able to use this command on my Mac. Thanks in advance everyone.

[#2]

Google search seems to be working fine this morning, are these the ones you found that did not work for you?

http://www.bricsys.com/common/support/forumthread.jsp?id=16036

http://forums.augi.com/showthread.php?t=131116#post1133269