ZKTeco Time and Attendance Software Class not registered
attendance management class not registerd



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portable



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To fix that issue do the following:
Start and type CMD.
Right-click it and select Run as Administrator.

Paste the following command and then wait for its finish:
Regsvr32 C:\Windows\SysWOW64\zkemkeeper.dll
Then you will get a message saying that you registered that DLL file successfully.
SysWOW64 is a folder in C:\Windows path, and have all the DLL files required in your program, but you only need to register this zkemkeeper.dll file.
Run the program and it should work!