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I am using visual studio 2012. I am trying to interact with a biometric attendance device through a desktop application via ip address. I added the necessary dll and ocx files to the reference folder of the project. I created the object of 'SB100PCLib' quite easily, but when I try to execute its functions, I get this run time error

Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))

As I am quite new dealing with third party dll, is there any extra step to perform? How to get rid of the error?
BillWoodruff 26-Dec-14 4:04am    
You are probably going to need to consult the manufacturer of the device, or find a way to get support from other users of this device.
Ikram Khan 26-Dec-14 5:21am    
I have studied the manufacturer's documentation but could find the help. And can not find help from any source

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