Win 32: does not read properties file if both HOME and HOMEPATH are set

Win32: appletviewer does not find properties file if both HOME and HOMEDRIVE &
HOMEPATH environment variables are set to the same thing, and HOMEPATH
directory is at least two levels deep.

Steps to reproduce
Set HOMEDRIVE=c:
set HOMEPATH=\\java\\demo
set HOME=%HOMEDRIVE%%HOMEPATH%
run appletviewer with any demo
Close appletviewer
run appletviewer again.