Restful API for posting JSON data to SAP Business One 10

I am creating a RESTFUL API for a web application which will be posting JSON data to SAP BUSINESS ONE 10.

While debugging the code, I received following error for executing the below line:

CODE

mCompany = new SAPbobsCOM.Company();

ERROR

Retrieving the COM class factory for component with CLSID {632F4591-AA62-4219-8FB6-22BCF5F60100} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Can anyone help me out for this?