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Participating Frequently
November 12, 2024
Open for Voting

Possible to improve how Premiere Pro (or CEP in general) loads extensions?

  • November 12, 2024
  • 0 replies
  • 114 views

According to the CEP cookbook, the CEP engine decides which folder to use with this logic:

 

```

How does CEP decide which extension to load?

  • CEP first searches the product extension folder, then the system extension folder, and finally per-user extension folder.
  • Extensions without an appropriate host application ID and version are filtered out.
  • If two extensions have same extension bundle ID, the one with higher version is loaded.
  • If two extensions have same extension bundle ID and same version, the one whose manifest file has latest modification date is loaded.
  • If two extensions have same extension bundle ID, same version and same manifest modification date, CEP loads the first one that is found.

```

 

However, if an extension load FAILS due to any issue such as a Signature Verification error, then it stops trying to load that extension altogether. So the suggestion is that in case of a failure, we work down this existing list and pick up the next best version of the same extension, e.g. in a different folder or of an older version, and load that instead.

 

Inspiration behind the suggestion is that a user ended up with a "bad" version of our extension in their `Program Files (x86)` folder (probably by using a zxp installer) which was giving a Signature Verification issue, and we also had a "good" version of our extension in their per-user extensions folder. However, the "good" version kept getting blocked by the "bad" version.