If your host program doesn't show up in the installer, please follow the instructions below.

Rebuild Spotlight Index
We use Apple's Spotlight feature to find the host applications that we install into and, on occasion, the Spotlight index becomes corrupt. The Spotlight index can be rebuilt by:

1. From the Apple menu, choose System Preferences.
2. Click Spotlight.
3. Click the Privacy tab.
4. Drag a folder or even an entire volume (your hard drive) to the list.
5. Remove the item or volume you just added.

Spotlight will re-index the contents of the item you initially dragged to the list and may take a bit of time to complete. After re-indexing is complete, run the zMatte installer again and your host application should be found.