Creating ActiveX to use a specific hardware

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C#

ActiveX

DLL

Hello Everybody

i need a advise and help about a little activeX , i have to develop some control to control a an external hardware (some kind of a printer) , i have the printer's API inside a DLL , and also we have to develop a activex control to use this hardware in web platform (there was a big software that handles an organization's business and a little part of this software needs to use that printer, web application's client want to send command to printer that it is a local printer)

now i have developed the activeX and i have tested it. in the activeX i want to Invoke my DLL but LoadLibrary("myDll") returns null and nothing working.

so please tell me solution to solve the problem and load library and other tell me if you have better idea about this approach of working with client hardware by web application.