Synchronize Multiple folders on a quick Disk

You can synchronize Multiple folders on a disk in the following ways:
1. Install the quick disk and set the default synchronization folder to D: \ quick disk;
2. If I want to synchronize the E: \ book folder, click Start -- run -- CMD and press enter to enter the DOS interface;
Enter and run the following command:
Cd d: \ fast Disk
Mklink/d book E: \ book (mklink is under win7, XP does not, so in XP, you can download the linkd tool)
3. At this time, you will find that a book directory is added to the fast disk directory. The contents in this directory are exactly the same as those in E: \ book. In fact, it is a soft connection, in this way, any changes in the E: \ book folder can be automatically synchronized to the fast drive.
4. You can synchronize Multiple folders. You do not need to move the location of the original folder.