For Win95/98 users/computers to receive a message, winpopup.exe must be
running.
For WinNT/2000/XP users/computers to receive a message, the Messenger
service must be running.
Tested on Win2000 sp3 IE6, NN4.79, N7.0
Messenger Service of Windows
JMU Windows Messaging Service Article
Default Processes in Windows 2000
Michel I. Gallant
neutron@istar.ca