I don'thave a current installation of Cygwin to refer to, but I do seem to recall that the Cygwin mount table allows changing the
/cygdrive prefix to anything the user wants. The Cygwin user manual
goes on to add:
To simplify scripting, Cygwin also provides a /proc/cygdrive symlink, which allows to use a fixed path in scripts, even if the actual cygdrive prefix has been changed, or is different between different users. So, in scripts, conveniently use the /proc/cygdrive symlink to successfully access files independently from the current cygdrive prefix
So maybe any SlickEdit capability to access Cygwin file paths should make recognition of the user specified Cygdrive prefix a modifiable option in the "File Options" section, rather than hard-coding it. And maybe internal use of the
/proc/cygdrive symlink might simplify the implementation a bit, since it would have to work in all kinds of contexts (diff, VC browser, etc.).