Windows Media File Editor - Is there a way to do this?

I am not sure if I should have this posted here or in the webcasting thread.

So I work with a group of audiovisual professionals.

We have hundreds of presentations saved on demand. We recently put a SSL on our programs server. So, now when you go to watch the old content there was an SSL error because the video has URL's that are called baked in, and they call for HTTP resources. This is a problem because they interfere with our new security requirements.

So I know I can go into windows media file editor and change the URL's in the script command. However, I have thousands upon thousands of these URL calls. Is there any way to automate this? I just need to change the HTTP:// to HTTPS://