Error code: c004291c

When you use DRM to package a media file, the encrypted file is successful. However, when you want to issue a certificate, you are prompted that the license method cannot be accessed by the attributes and methods of the object, ProgramI checked it several times and there were no errors ~, And CodeNot much, really sweat...
Think calmly. Since the program is sure that it is okay (because it can be run before), you should check the system environment. Then several DLL files have been installed and uninstalled several times, the result is the same as that of the access permission. The result is still incorrect.
After thinking about the whole process, my colleague asked me if I had installed a certificate issuing license .. If so, the program is now ready ..

Install and issue a certificate license:
Http://licenseserver.windowsmedia.com/--> enroll to get a new certificate --> fill in the relevant information (pay attention to the correct email) --> select "accept"

Okay. At this time, the system will send you a random code to your mailbox. check it now,
Continue http://licenseserver.windowsmedia.com/--> complete the enrollment with your e-mail confirmation --> enter email and random code --> continue... Okay...
You should have installed it successfully.

The error is as follows:

C004291c

. Keyid = kid' from key object Error