Error Messages when lauching FSX SE

Hi

I have a problem with Air Hauler.  After I select a job and load fuel etc and go to 'Fly', I get the following message:

Unhandled exception has occurred in your application. 

Could mot load file or assembly Microsoft.FlightSimulator.SimConnect.   Version = 10.0.60905.0   Culture=neutral.  PublicKeyToken= 31bf3856ad364e35 or one of its dependencies   The system cannot find the file specified.

I am running FSX Steam edition on Windows 10.  I have tried running as Administrator and updating FSUIPC but keep running into the same problem. 

Has anyone got any suggestions?

Thanks 

Yes, I tried that but still getting the same error message.  

Should AH need to be uninstalled and installed after SimConnect was updated?

Thanks

Thanks for your response.  I have the following in that file;

 

Microsoft.Flightsimulator.SimConnect.dll              App extension

Sample.exe.manifest                                                     Manifest file

SimConnect.h                                                                    H File

SimConnect.lib                                                                  Lib File

SimConnect                                                                        Windows installer

I have installed the bottom one, SimConnect but not sure where the other two are as SimConnect is the only application.   Can the other two be downloaded?