Earlier I received a webcast that a colleague of mine wanted me to review to see if a certain service would be a fit for our network. The file he sent over had a .WRF file ending which after some research I found out was a WebEx file meaning WebEx Recording Format. To play this type of file you need the WebEx .WRF Player which can be downloaded here or the files can be converted to WMV (Windows Media Format) to play in the Windows Media Player. To convert the file you have to use the WebEx Editor which allows you to open a .WRF file and export to WMV format. When I attempted to export to WMV I received an error which I describe below along with how I was able to resolve the error.