"Server execution failed" should mean that "wmplayer.exe" is still running or shutting down at that point. This error may also cause due to the incorrect registry setting.
To trouble this Windows Media Player issue, I would suggest you to try these methods and check if it works.
Run the Windows media player troubleshooter and check.
Open the Windows Media Player Settings troubleshooter
a) Click on Start and in the search bar type cmd.exe
Right click on cmd.exe and click on Run as Administrator
c) In the command prompt type the following command
net localgroup "Administrators" "NT Authority\Local Service" /add
d) Press enter and restart the computer
e) Check if you are able to play the files in Windows media player.
If the issue persists, try the following steps:
Restart Windows Media Player Network Sharing Service
a) Click the Start Button, type "services.msc" (without quotes) in Start Search box, and press Enter.
Double click the service "Windows Media Player Network Sharing Service".
c) Click on the "General" tab; make sure the "Startup Type" is "Automatic" or "Manual". Then please click the "Start" button under "Service Status" to start the service.
If it has been started, please stop it, restart the computer and then restart the service.
Edited by sikntired, 01 June 2013 - 06:34 AM.