# Module class not found for Referer Security (ModuleAccessControl) on 4.9.5+3 Trial License **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [October 4, 2025, 12:37pm UTC](https://community.wowza.com/t/module-class-not-found-for-referer-security-moduleaccesscontrol-on-4-9-5-3-trial-license/102756 "2025-10-04T12:37:38Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![neverdie0078](https://avatars.discourse-cdn.com/v4/letter/n/898d66/32.png) [@neverdie0078](https://community.wowza.com/u/neverdie0078)\ **Post date:** [October 4, 2025, 12:37pm UTC](https://community.wowza.com/t/module-class-not-found-for-referer-security-moduleaccesscontrol-on-4-9-5-3-trial-license/102756/1 "2025-10-04T12:37:38Z")
Since the server cannot find these core module classes, my main question is: **Are the security modules like `ModuleAccessControl` intentionally excluded from the Trial License for Wowza Streaming Engine 4.9.5+3?** If they are not supposed to be excluded, what could be causing the `Module class not found` error on a fresh installation? I also noted that the legacy `wms-plugin-collection.jar` is not available for download anywhere. Thank you for any help or insights you can provide. ---
**Author:** ![Scott\_Kellicker2](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/scott_kellicker2/32/1337_2.png) [@Scott\_Kellicker2](https://community.wowza.com/u/Scott_Kellicker2)\ **Post date:** [October 4, 2025, 10:00pm UTC](https://community.wowza.com/t/module-class-not-found-for-referer-security-moduleaccesscontrol-on-4-9-5-3-trial-license/102756/2 "2025-10-04T22:00:24Z")
I believe this module was once on the Wowza website as a downloadable jar, including source code, and was later provided on the Wowza public github. My memory is that it was released under the Wowza Public License. No idea what the current status is, hopefully someone from Wowza can confirm if I am incorrect and status