MarkC on UC Microsoft Skype for Business, Lync, Exchange & Everything Else

Prerequisite installation failed: RewriteModule

Skype for Business Server 2015 Installation fails on Windows Server 2016 with 'Prerequisite installation failed: RewriteModule'.

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Well - it's been a while hasn't it? I don't really blog much any more. Or rather I seem to have
switched to YouTube. Anyway, I've been recently configuring some Skype for Business Server 2015 units running on Windows Server 2016, and during the 'Setup Skype for Business Server Components' part it keeps failing with a 'Prerequisite installation failed: RewriteModule'.

It's fair to say it was getting a bit irritating. Anyway, after a fair bit of digging it seems to be the value of this key:

HKEY_LocalMachine\SOFTWARE\Microsoft\InetStp\
MajorVersion

Any number above 7 and it seems to kill the installation. The pragmatic solution? Set it to 7 - do the installation - and then set it back to what it was. In my case it was 10(Hex).

Hope that helps somebody out there!

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