If adding the reference in Visual Studio, set "Embed Interop Types" to False in the reference properties to avoid compilation errors. ✅ Result
For a 64-bit DLL on a 64-bit Windows OS, you must place the file in the System32 folder. C:\Windows\System32 zkemkeeper.dll install 64 bit
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 If adding the reference in Visual Studio, set
Note : Many users recommend putting both versions in their respective folders to avoid "Module not found" errors. : zkemkeeper.dll install 64 bit