[wix-users] Strange syntax in installer

[Arnette, Bill]

The IIS Media Services 4.1 installer (which appears to be created with Wix) has the following launch condition which prevents it from installing on Windows 10 (IIS 10)

(IISMAJORVERSION >= "#7") OR (Installed)

What does the # in the above string literal mean?  I don't see any mention of it in Wix or Windows Installer documentation about LaunchCondition syntax.

Note that IISMAJORVERSION is set from a registry search which, on Windows 10, is REG_DWORD 0xA

Thanks,
Bill

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