Crash on empty HOME var in Windows registry

[Vincent Liard]

Hi,

I'm using emacs on Windows XP SP2 (yes, I would prefer to run it 
under GNU/Linux). While configuring the HOME variable in the 
registry, at HKEY_CURRENT_USER\Software\GNU\emacs, I noticed that 
having an empty HOME string value at this place causes emacs to 
crash at start. My emacs version is
GNU Emacs 21.3.1 (i386-mingw-nt5.1.2600) of 2004-03-10 on NYAUMO

Thanks for the great work on emacs !
Have a good day,

Vincent