Thank you so much indeed,
For the above error, I really found out that 'K-Lite_Codec_Pack_1095_Basic' was causing it. When I uninstalled it, the no error was there. However, I need 'K-Lite Codec to let some video file formats, such as, FLV be played well by Windows Media Player. What would I do since uninstalling it resulted in FLV would not play well by WMP.
Moreover, Even installing 'K-Lite Codec Pack' resulted in giving me two Windows Media Players:
Note when I installed K-Lite_Codec_Pack_1095_Basic on my Windows 7 with laptop, then two Windows Media Player were there once when cliking 'right-click' on a video file, and chose 'open with', there were two Windows Media Player shown. Why???( screen shot below)
Any idea would be highly appreciated.