What is an .xesc file?

Test Professional, after the Lab Management update, now uses Expression Encoder 4.0 to create it video of screen activity. This means that when you run a test and record a video you end up with an attachment called ScreenCapture.xesc.

Now my PC did not have the Expression Encoder 4.0 installed, so did not know what to do with an .xesc file created within our Lab Management environment. To address this the answer is simple. On any PC that might want to view the video either:

1. Install the Expression Encoder 4 
2. or install just the Screen Capture Code

Once either of these is done, Media Player can play the .xesc file.