Q: Can I use the DVDFab 11.0.0.9 activation code on multiple computers? A: The activation code is usually valid for one computer only. If you need to use DVDFab on multiple computers, you'll need to purchase separate licenses.
If you absolutely must run an old version of DVDFab (not recommended), run it inside a Windows virtual machine (VirtualBox is free) to isolate any potential malware. DVDFab 11 0 0 9 Activation Code
The reasons are straightforward: