NtApphelpCacheControl
Other → NTSTATUS
NtApphelpCacheControl 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 61 version-and-architecture pairs recorded here it takes 16 distinct values, from 0x0013 to 0x019B.
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 (61)
| OS Version | Architecture | Number |
|---|---|---|
| Windows 10 1507 | x64 | 0x004C (76) |
| Windows 10 1507 | x86 | 0x018B (395) |
| Windows 10 1511 | x86 | 0x018E (398) |
| Windows 10 1511 | x64 | 0x004C (76) |
| Windows 10 1607 | x64 | 0x004C (76) |
| Windows 10 1607 | x86 | 0x0190 (400) |
| Windows 10 1703 | x64 | 0x004C (76) |
| Windows 10 1703 | x86 | 0x0195 (405) |
| Windows 10 1709 | x86 | 0x0199 (409) |
| Windows 10 1709 | x64 | 0x004C (76) |
| Windows 10 1803 | x64 | 0x004C (76) |
| Windows 10 1803 | x86 | 0x0199 (409) |
| Windows 10 1809 | x86 | 0x0199 (409) |
| Windows 10 1809 | x64 | 0x004C (76) |
| Windows 10 1903 | x86 | 0x0199 (409) |
| Windows 10 1903 | x64 | 0x004C (76) |
| Windows 10 1909 | x86 | 0x0199 (409) |
| Windows 10 1909 | x64 | 0x004C (76) |
| Windows 10 2004 | x64 | 0x004C (76) |
| Windows 10 2004 | x86 | 0x019A (410) |
| Windows 10 20H2 | x86 | 0x019A (410) |
| Windows 10 20H2 | x64 | 0x004C (76) |
| Windows 10 21H1 | x86 | 0x019A (410) |
| Windows 10 21H1 | x64 | 0x004C (76) |
| Windows 10 21H2 | x86 | 0x019B (411) |
| Windows 10 21H2 | x64 | 0x004C (76) |
| Windows 10 22H2 | x64 | 0x004C (76) |
| Windows 10 22H2 | x86 | 0x019B (411) |
| Windows 11 and Server 11 21H2 | x64 | 0x004C (76) |
| Windows 11 and Server 11 22H2 | x64 | 0x004C (76) |
| Windows 11 and Server 11 23H2 | x64 | 0x004C (76) |
| Windows 11 and Server 11 24H2 | x64 | 0x004C (76) |
| Windows 11 and Server 11 25H2 | x64 | 0x004C (76) |
| Windows 11 and Server Server 2022 | x64 | 0x004C (76) |
| Windows 11 and Server Server 2025 | x64 | 0x004C (76) |
| Windows 11 and Server Server 23H2 | x64 | 0x004C (76) |
| Windows 7 SP0 | x64 | 0x0049 (73) |
| Windows 7 SP0 | x86 | 0x0029 (41) |
| Windows 7 SP1 | x86 | 0x0029 (41) |
| Windows 7 SP1 | x64 | 0x0049 (73) |
| Windows 8 8.0 | x86 | 0x017F (383) |
| Windows 8 8.0 | x64 | 0x004A (74) |
| Windows 8 8.1 | x86 | 0x0184 (388) |
| Windows 8 8.1 | x64 | 0x004B (75) |
| Windows Server 2003 R2 | x64 | 0x0049 (73) |
| Windows Server 2003 R2 | x86 | 0x0013 (19) |
| Windows Server 2003 R2 SP2 | x64 | 0x0049 (73) |
| Windows Server 2003 R2 SP2 | x86 | 0x0013 (19) |
| Windows Server 2003 SP0 | x86 | 0x0013 (19) |
| Windows Server 2003 SP0 | x64 | 0x0049 (73) |
| Windows Server 2003 SP1 | x86 | 0x0013 (19) |
| Windows Server 2003 SP2 | x64 | 0x0049 (73) |
| Windows Server 2003 SP2 | x86 | 0x0013 (19) |
| Windows Vista SP0 | x86 | 0x0028 (40) |
| Windows Vista SP0 | x64 | 0x0049 (73) |
| Windows Vista SP1 | x86 | 0x0028 (40) |
| Windows Vista SP1 | x64 | 0x0049 (73) |
| Windows Vista SP2 | x64 | 0x0049 (73) |
| Windows Vista SP2 | x86 | 0x0028 (40) |
| Windows XP SP1 | x64 | 0x0049 (73) |
| Windows XP SP2 | x64 | 0x0049 (73) |