Zkemkeeper.dll Install 64 Bit Work

Force your application to compile as either explicitly x86 or explicitly x64 in the Visual Studio configuration manager. This removes ambiguity about which directory Windows will look into.

Copy zkemkeeper.dll and from the SDK folder. Navigate to C:\Windows\SysWOW64 . Paste all the copied files into this folder. Case B: If utilizing the native 64-bit SDK release

Following these steps will ensure your 64-bit system properly interfaces with your ZKTeco biometric devices.

Copy the 64-bit version of zkemkeeper.dll and its 64-bit dependency DLLs. Navigate to C:\Windows\System32 . Paste all the copied files into this folder. Step 3: Register the DLL via Elevated Command Prompt zkemkeeper.dll install 64 bit

Even after following the steps, you might encounter issues. Here are solutions to the most frequent problems:

Before executing commands, you must understand why Windows behaves differently with this specific DLL.

If you are using the more common of zkemkeeper.dll , you must place it in SysWOW64 . How to Install and Register Force your application to compile as either explicitly

Go to your project properties in Visual Studio. Under the Build tab, change the Platform target from Any CPU or x64 to x86 . This forces your application to run in 32-bit compatibility mode, allowing it to communicate seamlessly with the 32-bit ActiveX control.

Upon successful execution, you should see a pop-up dialog box stating: "DllRegisterServer in zkemkeeper.dll succeeded." If you see this, the installation is complete.

Error: "The module was loaded but the call to DllRegisterServer failed with error code 0x80040200" : Insufficient user account privileges. Navigate to C:\Windows\SysWOW64

These hex codes typically signal a permission bottleneck. Double-check that your Command Prompt explicitly displays "Administrator" in its title bar. Windows prevents standard user profiles from writing to the SysWOW64 library registry. Visual Studio Development Issues (Target CPU)

You must explicitly call the 32-bit version of the registration tool located within the SysWOW64 directory.