Appendix 3.A Prior Art
3.A.1 MS-DTYP #
The LUID type defined in this document derives from the Microsoft Data Types specification (MS-DTYP), §2.3.7.
The Peios LUID binary format diverges from MS-DTYP in one detail: HighPart is an unsigned 32-bit integer (uint32) rather than the signed 32-bit integer (LONG) used in MS-DTYP. The signed type in MS-DTYP is a Win32 API convention with no semantic purpose — LUID values are never negative. Making the field unsigned simplifies comparison and eliminates a class of sign-extension bugs.