The (often referred to as the Pro version) is a biometric software development kit by ZKTeco designed to integrate fingerprint recognition into applications via ActiveX controls . While the "portable" version specifically is not a standard release, developers often create portable environments by manually including the required driver and DLL files from the SDK package. Official Download Resources
A comprehensive English manual can be found on Scribd . Key Features & Technical Specs zkfinger sdk 50 download portable
You need one computer with admin rights. Install the SDK normally. The installer will place files typically in: C:\ZKTeco\ZKFinger SDK 5.0\ ZKFinger SDK 5
If using ActiveX, you must still register the .ocx file on the target machine using regsvr32 . Downloads and Resources Key Features & Technical Specs You need one
If you are looking for the ZKFinger SDK 5.0 specifically, you are likely maintaining or updating an older codebase that relies on COM-based fingerprint capture.