# Installing SlicerRadiomics Extension

**URL:** <https://discourse.slicer.org/t/installing-slicerradiomics-extension/41397>\
**Category:** Support\
**Tags:** extensions-manager\
**Created:** [January 31, 2025, 11:25am UTC](https://discourse.slicer.org/t/installing-slicerradiomics-extension/41397 "2025-01-31T11:25:51Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![pprior99999](https://avatars.discourse-cdn.com/v4/letter/p/67e7ee/32.png) [@pprior99999](https://discourse.slicer.org/u/pprior99999)\
**Post date:** [January 31, 2025, 11:25am UTC](https://discourse.slicer.org/t/installing-slicerradiomics-extension/41397/1 "2025-01-31T11:25:51Z")

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Hi,

I’m struggling to install SlicerRadiomics extension in 3D Slicer 5.6.2 using the Extension Manager within slicer. I get the following warning, " Failed to open extensions settings file: C:/ProgramData/slicer.org/Slicer 5.6.2./bin/…/slicer.org/Slicer-32448.ini " …

“[@KitwareMedical/slicer-extensions-webapp](https://extensions.slicer.org/catalog/All/32448/win)” 0 “Mixed Content: The page at ‘[@KitwareMedical/slicer-extensions-webapp](https://extensions.slicer.org/catalog/All/32448/win)’ was loaded over HTTPS, but requested an insecure image ‘[http://wiki.slicer.org/slicerWiki/images/2/2a/CarreraSliceEffect.png](http://wiki.slicer.org/slicerWiki/images/2/2a/CarreraSliceEffect.png)’. This content should also be served over HTTPS.”

I’m not sure how to get past this issue as my institution has given limited access permissions to the \*.ini file. My IT group has suggested that I need to contact the “vendor” to get instructions on resolving the issue.

Can anyone in the Slicer community help?

Thanks in advance,  
Phil

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [February 27, 2025, 9:44pm UTC](https://discourse.slicer.org/t/installing-slicerradiomics-extension/41397/2 "2025-02-27T21:44:43Z")

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Not sure if you figured this out already, but probably you don’t have write access to the c:/ProgramData directory. Slicer should by default be installed in a user directory so that things like extensions can be added. The https errors are unrelated and can be ignored.

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**Author:** ![pprior99999](https://avatars.discourse-cdn.com/v4/letter/p/67e7ee/32.png) [@pprior99999](https://discourse.slicer.org/u/pprior99999)\
**Post date:** [April 15, 2025, 2:09pm UTC](https://discourse.slicer.org/t/installing-slicerradiomics-extension/41397/3 "2025-04-15T14:09:00Z")

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Hey Steve, I was thinking that write access was the issue. Essentially, the issues got resolved by uninstalling and re-installing Slicer with a different IT person.