title: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))
body: <p>I'm getting this error when I'm using COM reference in winform. I tried using Window Media Player COM in winform and it's working fine. But I got this error when I tried using with other COM dll. </p>
  
  <p>I tried "regsvr32" to that COM dll but it was successfully registered but I'm still getting this error when I run my winform that is using that COM object. </p>