We have an ActiveX plugin that allows client-side scripts to access IDKit SDK. We provide it upon your request. Some understanding of ActiveX is required to use the plugin.
The plugin was developed quite some time ago by external consultant, so support for it is not provided and you should test if it's still working with latest version of IDKit SDK.
Source code for the plugin is part of the download. You can change the source code to fit your needs. There are also some sample pages demonstrating use of IDKit from VBScript.
Very old binaries (DLLs) for IDKit are also part of the plugin and install automatically when webpage is viewed for the first time. License to use these binaries can be acquired from ExpressID AFIS server, because it is much simpler than deploying local license to every client PC.