? CDPATH env variable

[oystercatcher]

I recently installed a science program called delta on win2k. My system

has c:\drdos and d:\win2k. The program inserted some variables

in win2k including CDPATH c:\delta I deleted the string as it was

causing problems so can only include part of the original string.

The first symptom something was wrong was when I tried to compile

a program using mingw in d:\tmp and I couldnt cd to a subdir

unless I gave it the full path. Also make failed as it had some cd

commands. At first I thought it was the registry parseauto but

after checking it found it ok. So then I started looking at the

system variables and found the stuff from the delta install.

My question is this:

How should this variable be set and not have unintended consequences?