Installing this emulator on modern 64-bit Windows systems (Windows 10/11) typically requires bypassing driver signature enforcement to allow the virtual driver to function. Prepare the Environment Open the Command Prompt as an Administrator.
MultiKey Emulator Installation Guide | PDF | Microsoft Windows multikey 181 x64 install
Administrator Access: You must have full administrative rights on the PC. Installing this emulator on modern 64-bit Windows systems
multikey_x64.sys in IDA Pro — what hooks, what vulnerabilities it introduces.