Maybe I am the last to hear.
Some time in the near past, I was auto upgrade to release 9.0.0.03305 or close to that. Everything PD9 here was running smooth. I was a happy camper. I started to do a DVD, and I didn't have DVD DZM files I had previously downloaded and installed. NP man! Downloaded the 3 I use. They wouldn't install as they have in the past. Stress and frustration levels went high.
I did a search here for a solution, but didn't enter the search correctly or Solution isn't among post.
After hunting for PD9 loader, I by frustration tried Windows7 of C and P. File carry's across explorer windows and when dropped in menu area opens and installed. Great feature.
Wish Cyberlink would give an heads up. Windows7 dictionary has it in Dictionary as "Cyberpunk" btw. Amature does it till he gets it right. A Pro does it till he can't get it wrong.