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<blockquote data-quote="HSishi" data-source="post: 1304360" data-attributes="member: 167861">Unfortunately not.The menioned registry branch in the registry doesn't contain a section for Dot.Net 3.5.Update service was not running, I started it and then tried the following.The 3.5 Offline installer I have stops with an error message. The official one refuses to get installed under Windows 11.Dot.Net 4.0 installer refuses because it says &quot;Not necessary because it's included in the windows version&quot;.4.81 installer refuses to get installed because a newer dot.net version is installed.I repaired / installed 5.0, 6.0., 7.0, 8.0 and 10.0.MediaPortal Setup still tries to install 4.0 but that fails. After that, MP installer skips everything else and claims to have successfully installed the update.I think the Setup check is waaaaay too strict and doesn't even consider later versions of Dot.net after 3.5 could be valid.editSource: <a href="https://blogs.windows.com/windows-insider/2025/10/08/announcing-windows-11-insider-preview-build-27965-canary-channel/" target="_blank">Announcing Windows 11 Insider Preview Build 27965 (Canary Channel)</a>There is still a separate downloader for 3.5 mentioned on that page, but maybe it's time to move on to a more recent Dot.Net requirement.Anyway, after I installed 3.5 using the mentioned downloader, MP 1.38 finally gave up and installed.</blockquote>

[QUOTE="HSishi, post: 1304360, member: 167861"] Unfortunately not. The menioned registry branch in the registry doesn't contain a section for Dot.Net 3.5. Update service was not running, I started it and then tried the following. The 3.5 Offline installer I have stops with an error message. The official one refuses to get installed under Windows 11. Dot.Net 4.0 installer refuses because it says "Not necessary because it's included in the windows version". 4.81 installer refuses to get installed because a newer dot.net version is installed. I repaired / installed 5.0, 6.0., 7.0, 8.0 and 10.0. MediaPortal Setup still tries to install 4.0 but that fails. After that, MP installer skips everything else and claims to have successfully installed the update. I think the Setup check is waaaaay too strict and doesn't even consider later versions of Dot.net after 3.5 could be valid. [I]edit[/I] Source: [URL='https://blogs.windows.com/windows-insider/2025/10/08/announcing-windows-11-insider-preview-build-27965-canary-channel/']Announcing Windows 11 Insider Preview Build 27965 (Canary Channel)[/URL] There is still a separate downloader for 3.5 mentioned on that page, but maybe it's time to move on to a more recent Dot.Net requirement. Anyway, after I installed 3.5 using the mentioned downloader, MP 1.38 finally gave up and installed. [/QUOTE]

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