I had wondered why in Windows Lispworks creates the .slime directory in a different location to sbcl.

Turns out that Lispworks determines user-homedir-pathname from the HOMEDRIVE and HOMEPATH environmental variables. I discovered this after SWANK errored out when Lispworks attempted to create the .slime directory on a network mapped drive.

Setting the HOMEDRIVE and HOMEPATH environmental variables in slime-lisp- implementations fixed this.

-Luke