How to use Finger print device on web application?

I'm astounded how often people ask this. It's clear that anyone who asks this has no idea what ASP.NET is, or what it does. It's an engine for HTML and javascript. That's what your browser knows how to work with. So, you can't. You could perhaps write an ActiveX control in C++ or an .NET control ( which means your user needs .NET installed ), or potentially nowadays use Silverlight ( I am not sure if Silverlight has access to the USB ports tho, Silverlight 4 adds printing for the first time ). Then you can use that for fingerprint scanning, and write code to interact between that and your web pages. Assuming that the user will give your control permission to run, but I assume a fingerprint scanner will be used in closed applications where that won't be an issue.

It require "COM CONTROL" of finger print device.

Add it on page by using "Add Refrence" wizard.
finally by using it name you can write and execute code on server side.

Use object tag on web page
<object id="idofobject" classid="CLSID:class_Id_of_com_control">
name="naemofobjecte">
</object>


down load sdk form
http://www.secugen.com/download/index.htm[^
after install sdk it give the pdf and sample demo project.