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Project: System Information Unit.
Unit: PJSysInfo.
Class: TPJOSInfo
Applies to: ~>5.6
class function RevisionNumber: Integer;
Stores the operating system’s revision number.
If no revision number is found then 0 is returned.
The revision number is read from the registry.
Basic tests indicate that this value cannot be spoofed, but registry spoofing is known to vary between different OS versions, so this test result is not conclusive.