Microsoft offers a free 2 major platforms for information rights management service: windows live service and windows 2003\2008 right management services, both supported in outlook 2003\2007\2010.for ease things, Microsoft  inserted a great Rights Management add on for Internet Explorer which permits users with earlier Microsoft Office systems  to view the messages. Recipients will not be able to view information rights management (IRM) protected messages without it. With the add on, recipients will be able to view messages, but not forward, copy, or print the message. Outlook 2010 will deliver all necessary actions. Windows Live ID is required in order to to send or view IRM-protected messages. Login to the service with appropriate Windows Live ID credentials is necessary in order to download a certificate, which Outlook 2010 uses to verify the user identity to enable the IRM features.
To use Using Microsoft Outlook 2010 IRM Service and send\print IRM protected messages, do the follow:

1.Open Outlook 2010 < create new message.

2.When message form open <click “File” < Set Permissions <Do Not Forward.
If IRM add on is installed Outlook 2010 will show a dialog box < press “Yes – I Want To Sign Up For This Free Service from Microsoft” <click “Next”.

3.In this step windows live ID is required so if you already have a Windows Live ID <
Click “Yes” < click “Next” <enter the Windows Live credentials. If you have no windows Live ID < choose “No” < click “Next” < follow the instructions to obtain a Windows Live ID.

4.If you’ll use the certificate from your computer all the time <  choose ” This is a Private Computer”
If the computer is public or shared <choose “This is a public or shared computer” (that certificate will be temporary)

5.Click “accept” < click “finish”

6.Outlook will display the “select user” dialog box which contain the one user that you just created < press “OK”.

7.Click the Message < make sure the info bar in the form shows “Do Not Forward” message.

8.Write the requested content  < send the message