Knowledge Base FAQ Item #3350030

Q3350030: Why am I getting the following error message when compiling your Visual Csharp .NET sample: "Cannot load type library for reference "AxSerial". Library not registered. (Exception from HRESULT: 0x8002801D (TYPE_E_LIBNOTREGISTERED)"

You haven't installed and registered the ActiveXperts Serial Port Component ActiveX component properly. This component can be installed and registered automatically by running the ActiveXperts Serial Port Component installation, or by registring manually (see also FAQ Q3000015).