cd C:\Windows\System32 regsvr32 zkemkeeper.dll ✅ Success message should appear: DllRegisterServer in zkemkeeper.dll succeeded. | Error | Solution | |-------|----------| | The module failed to load | Install VC++ Redistributable (2015-2022) | | Access denied | Run CMD as Administrator | | DllRegisterServer entry point not found | Wrong bitness of regsvr32 – use correct folder | | Class not registered | Re-register or reinstall SDK | 🧪 Verify Installation Run this in PowerShell (Admin):
| DLL Bitness | Destination Folder | |-------------|--------------------| | 32-bit zkemkeeper.dll | C:\Windows\SysWOW64 | | 64-bit zkemkeeper.dll | C:\Windows\System32 | Most ZKTeco SDKs provide a even on 64-bit systems. ✅ Recommended (if unsure): Copy the DLL to: zkemkeeper.dll install 64 bit
Get-ChildItem C:\Windows\SysWOW64\zkemkeeper.dll Or in CMD: cd C:\Windows\System32 regsvr32 zkemkeeper