First, please undo the "caps lock" button, as all capital letters are hard to read and are considered "shouting".

That said, whenever posting questions on these forums, please give us as much information as possible about your computer. We need the operating system, processor speed, amount of RAM installed, brand name of the computer, (if there is one), and any EXACT error messages you are receiving. The more information you give us, the better informed our answer will be.

The answer to the subject of your question:

What is ActiveX

MusicMatch must require specific "plug ins" which use ActiveX programming. Here's a link that might help:

MusicMatch Plugins

For Example:

Hope this helps.