How to make free video calls with skype on windows7,xp

Few days back some one asked about free calls

1). Open google.com, Search text like below

2). Now install setup

3). Click i agree-next

4).Click Continue.

 After sucessfully installed add your phone number, I have login with hotmail.com

5).Then go to Contacts->contact Lists->Facebook

 6)click on Connect to Facebook

7).Wait for some time

Now login with Facebook username,password. Click Import

 Check contacts before adding. Then click on ADD Contacts button.

8).Now a invitation will send to non skype users.Click Send email button.

9).Now a email will send to your facebook contact users

10).After You can see below window

11). You installed skype successfully.

****Call  your freinds without recharge your mobile.****

Very niece feature isn't it.Don't add me in your fan list

Next is how to install skype on mobile.