Netscape 3.04 in Window 2000

[ortho]

I need to run NS 3.04 to test backwards compatability of web pages.

I installed it on a new P3 Win2000 machine, tested it quickly and it
seemed to work. Then I installed NS4.76 and NS6.0.

I have gone back to use NS3.04 and cannot get it to run. I re-installed
but to no avail. I keep getting this message;

"nestscape.exe has generated errors and will be closed by windows. An
error log is being created."

Can anyone please help?