If you only want to share a single folder on a network, you can just right click on it, go to "Sharing and Security", and check the "Share this folder on the network box". If you want to share numerous folders and set them up easily, do as follows:

1. Go to "Start'Run" and in the command prompt, enter "shrpubw.exe". Hit enter.
2. When the new Window pops up, hit "Next".
3. Now you will be given many options as to how you want your folder set up. Go through all of the options and choose the settings you want.

   Do this for all of the folders you want to share and you will be done in no time!