A: The DLL uses low-level USB and network socket operations. Add an exclusion for the entire folder C:\Windows\SysWOW64\zkemkeeper.dll in your AV software.
cd C:\Windows\SysWOW64 regsvr32 zkemkeeper.dll zkemkeeper.dll install 64 bit
A: Install the DLL in SysWOW64 for the 32-bit app. For the 64-bit app, place a second copy of a native 64-bit zkemkeeper.dll (if available) in System32. They do not conflict. A: The DLL uses low-level USB and network socket 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. Conclusion Installing zkemkeeper.dll on a 64-bit system is not inherently difficult—but it is a precise process that respects Windows’ architected separation of 32-bit and 64-bit libraries. The vast majority of failures stem from two mistakes: placing the DLL in System32 instead of SysWOW64, or using the 64-bit regsvr32 on a 32-bit DLL. For the 64-bit app, place a second copy