Dreamliner....
I did the following uninstalled for Verison 5.02.
1) Unistall @ Control Panel (or other utilities programs that has a Uninstaller).
2) Clean registry
3) Clean Shortcut
4) Remove Junk files (not necessary).
4) Lastly, I used the program with a Disk Analysis, and do a search for the remaining uninstalled program of
DVDFAB 5 & DVDFab4 and wipe them off the disk.
5) Reboot
After the reboot, you can install version 5, assumingly it will be clean.
I uninstalled version 4 of DVDFab the same way, since I already have version 5, moreover, it is no point keeping version 4, since it will not be updated or supported anymore.
Thanks