Sermonex is a free Windows application that extracts audio from Windows Media video (WMV) files. It can then add these new audio files to your iTunes or Windows Media Player libraries, if desired.
Sermonex can run in the background, checking for new video files at regular intervals. Just tell Sermonex to watch the folder.
Download Sermonex 1.0.0 — Requires Windows 98 or later, and Windows Media Player 9 or later. You must have administrative privileges on your computer to install Sermonex. You must download and install the Microsoft .NET Framework if the setup program says that you require it. You may have to log off or reboot after installing the .NET Framework.