>>Is it possible that the applet needs a command line path instead of a virtual one, sort of like ADO with OLEDB? It's possible that it can get it on your system with Win95's extrenuous security measures, but that it cannot on NT's?
>
>I'm afraid I don't follow that? Can you explain please? Thanks!

What I meant is maybe the .class needs to find the key in a path such as "c:\inetpub\wwwroot\classes" instead of a virtual web directory such as "./classes". Again, this is just a theory.

>>Another idea is to contact the manufacturer and find out what it needs as a path.
>
>Manufacturer says that it doesn't need the codebase clause on the applet tag and that it should just work as long as *.class and *.key are in same place. So obviously FrontPage compatibility is of little concern to them :(

Have you tried coding it in HTML instead of the FP assistants, or even better, in Notepad so that FP won't manipulate the source at all. It might add something the class doesn't like. Just another random thought on a pretty sequential day :)

Hugo