Trouble with a VBox prot

Update....

Well, after almost a week of playing, I decided to cheat a little. I grabbed a crack from the net for this app, and tried to reverse what they had done. Turns out I did everything right with the .exe file, but three other dlls were also changed. Without these changes, the app kept launching to the "try" nag window.

I know vbox 4.3 is old and outdated, but I'd still like to learn how it worked in this case...I'd love to analyse further, but without a license key from previewsystems, my downloaded copy of the packer is kinda useless.

Anyone else know of vbox encrypting/packing DLLs?

Note, I'm not talking about vbox dlls either, these are part of the application, not the vbox protection.

Thanks,

Sharky