Retrieving the COM class factory for component error

Question

i am using authorize.net payment gatway service but when we submit transaction then my aplication  prvide me transaction key error like this .how to solve it

 

Retrieving the COM class factory for component with CLSID {0C349B00-7C30-48BE-B902-8D90ACB4F06F} failed due to the following error: 80040154.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Runtime.InteropServices.COMException: Retrieving the COM class factory for component with CLSID {0C349B00-7C30-48BE-B902-8D90ACB4F06F} failed due to the following error: 80040154.

Source Error:

Line 204:                        AuthNetLoginID = dr[0].ToString(); Line 205: Line 206:                       

 TransactionKeyManager.clsModule NewMOD = new TransactionKeyManager.clsModule(); Line 207:                        NewMOD.EncryptionCSPDisconnect(); Line 208:                        NewMOD.EncryptionCSPConnect();