After following the steps above, validate the installation:
You cannot just copy the file; you must register it in the Windows Registry using the Command Prompt. Search for in your Start menu. zkemkeeper.dll install 64 bit
HKEY_CLASSES_ROOT\ZKEM.zkemkeeper.1
: If you encounter issues after adding the DLL as a reference, go to the reference properties and set Embed Interop Types to False . After following the steps above, validate the installation:
If present, the 64-bit installation succeeded. After following the steps above
obj.ReadAllUserID(1); // Further operations
A: Yes. This classic error means the COM registration failed. Run C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\zkemkeeper.dll explicitly, then reboot.

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