try this method...:)
Dim idResult As DPUruNet.IdentifyResult = DPUruNet.Comparison.Identify("Finger FMD1", 0,"List of finger FMD from Database", 2147, 2)
If (idResult.ResultCode = DPUruNet.Constants.ResultCode.DP_SUCCESS) Then
If (idResult.Indexes.Length >= 1) Then
userId = "Data from database"
Else
userId = 0
End If
Else
if you will get index length > 1 then your finger has been verified.. :)