c# or vb code for thumb impression capturing software using biometrics

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C#

VB

ASP.NET

C#4.0

this is srinivas kumar

i want to develop one s/w which capture the thumb impression and to store that data in sql server for one project

i not asking the total code

i just need some basic information about developing s/w for my requirement

can any of u provide some better idea

how to develop ?

which device better for implting

iam searching for basic now in .net tech

thank u

can u give me reference