It sounds like you’re referring to a package (likely for biometric time clocks).
If you have two doors or two factories, go to System > Network > Sync Mode . You can set one PC as the “Master” that pulls data from up to 32 devices via UDP broadcast. Version 3.7.1 handles this better than v3.5. zk attendance management 2008 ver 3.7.1.zip
Use 7-Zip or WinRAR to extract the ZIP file. Do not double-click the ZIP directly. Inside, you should see: It sounds like you’re referring to a package