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I am using fingerprint reader UFP20. There is a seperate dll called WebSvrMatch.dll for server side usage which is different from client side dll in that it does not reguire fingerprint device to be connected to the comp. The example in Web folder uses ASP/VB , I tried to use it in PL/SQL and C# but in both cases I failed. The WebSvrMatch.dll is a COM dll so I could import it using VisualStudio which creates wrapper classes. But the autocreated function accepts only arguments of type object (variant).

(object template, object enrlTemplate, object security, object dont_remember, object result)

looking at VB code I thought it should accept string or byte[] as first 2 arguments, int or string as 3rd and int for last 2 arguments

but unfortunantly I got exception saying "This function trying to access protected memory area, ..."