How to disable synchronising log in Outlook 2007?

1. 'Tools' / 'Send/Receive' / 'Send/Receive Settings' / 'Define Send/Receive Groups'. Select the group. Click on 'Edit'. Clear the tick mark before 'Download offline address book'.
2. 'Tools' / 'Options' / 'Other' / 'Advanced Options'. Clear the tick mark before 'Enable logging'.

How to extract audio from video?

Best method - Format Factory 格式工厂

Method 2 - The latest version of QQ Player has the function.

Method 3 - http://www.flv2mp3.com/

How to download Youtube videos?

The best way -
http://convert2mp3.net/en/

Install ClipGrab.

http://www.computerhope.com/issues/ch001002.htm

http://www.savevideodownload.com/download.php