Netmeeting is not available in Windows 7 due to there are Dynamic Link Library conflicts .In Windows Vista you can use Windows Meeting Space as a replacement of netmeeting , but we still cannot find this tool under Windows 7.Below list some features or tools as replacement of netmeeting in windows 7
Replacement One
You can use Remote Assistance to share your desktop to your friend by sending him/her a invitation file or a piece of password .

Replacement Two
You can use Remote Desktop to share your desktop to your friend ,you need to select an account from your computer and tell him/her the username and password

Replacement Three
Download an install Microsoft SharedView , Microsoft SharedView is a fast, easy way to share documents and screen views with small groups of friends or coworkers; anytime, anywhere.Windows Live ID is required to use this tool
