Bit | Zkemkeeper.dll Install 64

After following the steps above, validate the installation:

Set obj = CreateObject("zkemkeeper.ZKEM.1")
MsgBox "zkemkeeper is registered! Version: " & obj.Version

| Practice | Why It Matters | |----------|----------------| | Keep a backup of the original 64-bit DLL | Future Windows updates might overwrite or block it. | | Use side-by-side registration for portable apps | Instead of global registration, place the DLL alongside the EXE and use reg-free COM manifests. | | Monitor Windows Defender / Antivirus | Some security suites flag zkemkeeper.dll as a “suspicious COM object” – add an exclusion. | | Update to latest SDK version | Older versions (pre-2018) may have memory leaks or TCP/IP timeouts. Current stable: 2.0.1.18+ | | Test after Windows Feature Updates | Major updates (22H2, 24H2) sometimes reset DLL registration. Re‑run regsvr32 post‑update. |

Yes, with caveats:

Recommendation:
If your software is 64‑bit, contact ZKTeco for a native 64‑bit DLL.
If it’s 32‑bit (most common), follow the SysWOW64 + regsvr32 method. After following the steps above, validate the installation:

For IT teams deploying to hundreds of machines, manual installation is untenable. Save the following script as install_zkemkeeper.bat and run as Administrator.

@echo off
echo Copying zkemkeeper.dll to SysWOW64 for 32-bit compatibility on 64-bit OS...
copy /Y zkemkeeper.dll C:\Windows\SysWOW64\
echo Registering using 32-bit regsvr32...
C:\Windows\SysWOW64\regsvr32.exe /s C:\Windows\SysWOW64\zkemkeeper.dll
echo Installing Visual C++ dependencies (requires internet)
:: Download and install VC++ redistributables silently
curl -o vc_redist.x86.exe https://aka.ms/vs/17/release/vc_redist.x86.exe
vc_redist.x86.exe /quiet /norestart Test with a Quick Script:  Create a
echo Adding firewall exception for ZK devices (TCP 4370)
netsh advfirewall firewall add rule name="ZK Bio Standard Port" dir=in action=allow protocol=TCP localport=4370
echo Installation complete. Reboot recommended.
pause