NtW32Call

Other → NTSTATUS

NtW32Call 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 6 version-and-architecture pairs recorded here it takes 3 distinct values, from 0x00C3 to 0x00CC.

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. The table below gives the value recorded for each.

Numbers across OS versions (6)

OS VersionArchitectureNumber
Windows NT 3.x 3.51 x86 0x00C3 (195)
Windows NT 4.0 SP0 x86 0x00CA (202)
Windows NT 4.0 SP1 x86 0x00CA (202)
Windows NT 4.0 SP2 x86 0x00CC (204)
Windows NT 4.0 SP3 x86 0x00CC (204)
Windows NT 4.0 SP3 TSE x86 0x00CC (204)