I had the same problem, so I used Services.msc to make the following changes:
1. Changed
CyberLink PowerDVD 12 Media Server Monitor Service to "Manual"
2. Changed
CyberLink PowerDVD 12 Media Server Service to "Manual"
I also changed
CLHNServiceForPowerDVD12 to "Manual" just for good measure. All I use PowerDVD 12 for is DVD playback, so it's actually safe for me to
disable these. However, setting them to Manual is more of a "safe" setting because they will still be able to start if they are ever needed. So far, they've never been needed for the way I use PowerDVD 12. I can still disable them, but it won't make any difference because they're never started anyway.
To open Services.msc in Windows 7, open the Start Menu, type
services.msc, and press Enter.
In Vista, I recommend Windows Key+R (which is a fast way to open then the Run Command dialog box), type
services.msc, then press Enter. You can certainly use the Start Menu search in Vista, but I heard that it can sometimes be painfully slow.
I also went to the following Registry key ("regedit", for those who aren't sure):
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run
...and I deleted the entry on the right-hand side named "PowerDVD12Agent". By doing this, I discovered that I don't need it for the way I use PowerDVD 12.
As always, reboot after making any of these changes (or after all of them if you so desire) in order for them to take effect.
Note: If you do the same thing that I did in Services.msc, then you will receive the following message every single time you start PowerDVD 12:
All I have do to is either press Esc, press Enter, click Yes, or click the little 'x', and then I'm good to go. I prefer pressing Esc or Enter because it's faster than using the mouse.
Remember: all I use PowerDVD 12 for is DVD playback, and it is not affected by making these changes!