Windows 2019 and MSQUEUE

0x80073701 = ERROR_SXS_ASSEMBLY_MISSING which means there are some system files are missing, which caused the installation failure. You can also try a repair install by running setup.exe from the root of the install.

I wouldn't hold much hope for this, the template may be somehow corrupt. Time may be better spent standing up a new one, patch it fully and migrate the roles or applications over to it.

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Hello

Thank you for your question and reaching out.

I can understand you are facing with installing Role or Feature on Server 2019.

In this case I will suggest you to have a look on below two Microsoft article discussing the same error code 0x80073701 . However its for Windows 2008 and 10 but it should be helpful in your scenario.

https://learn.microsoft.com/en-us/archive/blogs/asiasupp/how-to-resolve-the-error-0x80073701error_sxs_assembly_missing-when-you-are-installing-a-service-pack-or-update

https://support.microsoft.com/en-us/topic/when-trying-to-install-updates-from-windows-update-you-might-receive-updates-failed-there-were-problems-installing-some-updates-but-we-ll-try-again-later-with-errors-0x80073701-0x800f0988-e74b3505-f054-7f15-ec44-6ec0ab15f3e0

On the other note , If you have Original .iso from which the server was installed then try install MSMQ role using DISM command and give path to original .iso file .

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