How can I share only a small portion of my screen/display?

Does anyone know how to share only a portion of your display when screen sharing (via something like Remote Desktop or VNC)?

Say I have a program running (in Windows 7), and I want to show JUST the top half of the GUI for that program. I have not found any screen-sharing software that can accomplish this. The closest I've seen is Skype, which can share the whole GUI window excluding the rest of your desktop.

I have tried:

• Join.me
• Quick Screen Share
• Live Look

If there's not a program to support this, is there some workaround I could do?

Solution 1:

Teamviewer can share only an application, as for part of said application I do not think it will do just that. But it can share only your powerpoint or other application if that is what you are after.

Teamviewer Meetings

Solution 2:

SeeVogh is primarily a video conferencing system, but it's screen sharing feature, called Deskshare, allows you to draw a box on the screen and it will share what appears in that box. The red box in the image below shows the feature: