runtime error to connect to outlook

See more:

C#

ASP.NET

Outlook

i want to connect to outlook through my externalp program

sample code is:

 ContactItem contact1 = new ContactItem();
contact1.Email1Address=name+"@XX.com";
this.CreateEmailItem(subjectEmail, contact1.Email1Address, bodyEmail);

but during creation of contactItem object i am getting run time error like

ERROR:

An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in mscorlib.dll

Additional information: Retrieving the COM class factory for component with CLSID {00061031-0000-0000-C000-000000000046} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

i followed all things like i have tried with both 32 and 64 bit microsoft.office.interop.outlook dll

please suggest me some solutions


thanks in advance.