Desktop Screen Sharing with Flash Video Chat Software
Screen sharing requires a driver to capture the screen and simulate a webcam. There are multiple webcam simulation drivers of this type, commercial and free software packages. We tested the VH Screen Capture Driver that can be downloaded for free (for personal use).
With the screen capture driver enabled you just have to select the new “webcam” in flash (right click the flash and select from settings in any flash video chat software).
Only the user that shares his screen needs to have this type of driver installed. Those running tutoring, consulation, support websites can purchase a commercial software package that includes this type of driver (i.e. Camtasia Recorder with the Live Output feature).
Most drivers allow defining a zone to capture and even rezising the output. Chat applications usually require a 320×240 webcam stream at 15fps so you should configure output to that if possible.
Another popular method for screen sharing (as seen on youtube), but less professional is pointing your webcam to the screen.
Here is our test with the VH Screen Capture driver:
Other solutions to try:
MReplay Broadcast
Webcam Max
Fake Webcam
Video Conference
Video Broadcast



I am the developer of a software called ScreenCamera that allows users to stream the desktop inside video chatting programs and websites such as Skype, Live Messenger, Yahoo Messenger, AOL Messenger, blogTV, Justin.tv, Mogulus, and so on.
ScreenCamera has a free version that streams the desktop without any cost or any limitation. The paid version supports webcams allowing to users to stream desktop and webcam together and also use the webcam on multiple programs at the same time.
It is a free desktop sharing program that has the only downside of having to shrink the desktop to 320×240 pixels that is the resolution most video chatting programs and websites use. It makes up for it allowing the user to follow the cursor or select regions of the desktop and by not interfering with the live video chatting.
You can download the free version here:
http://www.pcwinsoft.com/screencamera/free.asp
Or the paid version here:
http://www.pcwinsoft.com/screencamera/
Regards,
Alex Ferri
PCWinSoft Systems Ltd
http://www.pcwinsoft.com/