After I updated the latest version of Xmind, I was unable to search for Xmind files.
I looked at the Configuration ->Extensions -> IFilter, and Xmind IFilter disappeared.

I had to reinstall the old version of Xmind so that Xmind IFilter would reappear and search properly.

Does this mean I can only use older versions of Xmind?
Are there any other solutions? The FileLocator has been doing a great job of helping me with my daily work, but this issue is bothering me.