For instructions on registering DLL files in Windows 98, XP, Vista, 7:
If you have a bug related to files * .dll and * .ocx, you must:
1. Check for the required file system. Files * .dll and * .ocx, as a rule, should be located in the system folder C: \ WINDOWS \ system32.
If the files are present, you need to register them.
- Press the "Start / Run" or press the key combination Win + R
- Enter regsvr32 cdm.dll (example: regsvr32 cdm.dll)
- To restart a computer
2. If the required file is not present, look for them on the site, download and copy the folder C: \ WINDOWS \ system32 and register as stated in the first paragraph.

How to download free cdm.dll?

If you receive an error message saying that the file cdm.dll missing, damaged, lost, required, or Windows Update CDM Stub "can not run the program, as the computer does not cdm.dll", "cdm.dll was not found "(" cdm.dll not found "), then download cdm.dll file and copy it to the folder" c: / windows / system32 "(if Windows is installed on drive C). Then restart your computer.