Re: Deleting directories

> I am searching for a method of deleting directories in Lisp.

Look at "delete-directory" in the LispWorks package. (It's documented in
the LispWorks Ref Man.) However, from what you described it sounds like the
directory may have been open at the time you were trying to delete it; if,
for example, you had an Explorer window open on the dir, or a command-line
session, or if some process had that dir set to its current working dir,
you'd get exactly the error you mentioned.