How to read or write smart card
<p>Im new with smart card. I have some smart card (ISO 7816-4 support) but don't have the specification and omnikey reader. Im using pcsc sharp. I can transmit only get challenge instruction successfully. I can read the ATR too. One of my card ATR is 3B-DB-94-00-80-31-FE-45-00-31-C0-64-20-27-02-00-00-90-00-45. But cannot transmit any other instruction. The response that is getting by sw1 and sw2 is like "file not found", "Wrong parameter" and so on. 
My question is Is there any common way to read or write on a smart card. 
And Can I read or write to a smart card that vendor specification is not known.</p>