Make a shortcut on your Desktop that opens up Netscape. Then, go to the Properties of the shortcut, and in the Target box, make a change there.
The Target box will look something like this:
"C:\Program Files\Netscape\Netscape.exe"
Ok, change it to this:
"C:\Program Files\Netscape\Netscape.exe" C:\FILEPATH\FILENAME.HTM
So, if the HTM file you want to open with Netscape were C:\TEMP\MYFILE.HTM the new Netscape Desktop shortcut would look like:
"C:\Program Files\Netscape\Netscape.exe" C:\TEMP\MYFILE.HTM
It is important to NOT put the quotation marks around the HTM file you want to open in Netscape. Just do it like I posted above, and it will work.
Oh, I don't have Netscape installed, so I can't post the correct path that you will see in the Target box, but since you do you can find the path.
hope this helps