Personally speaking, this is quite an interesting and useful tip, strongly suggest you have a try!
We need use MS word almost everyday, if we can add some background music in our documents,
that would be perfect, especially when we send mails with MS word. I have tried, and it’s really
interesting. You can hear the music the moment u open the document. You can set yours as the
following steps:
1. Open the word document which you want to edit.
2. Click “viewàheader & footer” (Do not forget this step, or u’ll fail in this setting!)
3. Click “insertàObject”, then select “windows media player” in the popup window
4. Click OK, and you will see a black media window.(Don’t worry, we can’t hide it later)
5. Right click the window and choose “properties”
6. Double click the “Customize” and begin setting
7. Click “browse” and choose a music in your computer; now can you see the “select a mode”
option? Right, like this one.

Select invisible in the pull-down menu;
At last, change the number in the “play count” field, usually, we change it to 999

8. remember to tich “√” before “Auto start”
9. Great! The only thing you need to do now is click OK, then OK again, and save the word document.
Open it again; can you hear the beautiful sound now?