NtCancelDeviceWakeupRequest

Other → NTSTATUS

NtCancelDeviceWakeupRequest is a Windows NT kernel system call, in the Other category, returning NTSTATUS. Its syscall number is not the same on every Windows release: across the 26 version-and-architecture pairs recorded here it takes 6 distinct values, from 0x0015 to 0x0086.

The number is an index into the system service table of one particular build, not a stable identifier, so it is not portable between Windows versions or between x64 and x86. The table below gives the value recorded for each.

Numbers across OS versions (26)

OS VersionArchitectureNumber
Windows 2000 SP0 x86 0x0016 (22)
Windows 2000 SP1 x86 0x0016 (22)
Windows 2000 SP2 x86 0x0016 (22)
Windows 2000 SP3 x86 0x0016 (22)
Windows 2000 SP4 x86 0x0016 (22)
Windows Server 2003 R2 x64 0x0070 (112)
Windows Server 2003 R2 x86 0x0017 (23)
Windows Server 2003 R2 SP2 x86 0x0017 (23)
Windows Server 2003 R2 SP2 x64 0x0070 (112)
Windows Server 2003 SP0 x86 0x0017 (23)
Windows Server 2003 SP0 x64 0x0070 (112)
Windows Server 2003 SP1 x86 0x0017 (23)
Windows Server 2003 SP2 x64 0x0070 (112)
Windows Server 2003 SP2 x86 0x0017 (23)
Windows Vista SP0 x86 0x002C (44)
Windows Vista SP0 x64 0x0086 (134)
Windows Vista SP1 x86 0x002C (44)
Windows Vista SP1 x64 0x0086 (134)
Windows Vista SP2 x86 0x002C (44)
Windows Vista SP2 x64 0x0086 (134)
Windows XP SP0 x86 0x0015 (21)
Windows XP SP1 x86 0x0015 (21)
Windows XP SP1 x64 0x0070 (112)
Windows XP SP2 x86 0x0015 (21)
Windows XP SP2 x64 0x0070 (112)
Windows XP SP3 x86 0x0015 (21)