Start > Enter %APPDATA%\Microsoft\FSX\DLL.XML in the search field > click on the resulting file to open it.

See if the following entries are in there:

   <Launch.Addon>
       <Name>Captain Sim 767 Menu</Name>
       <Disabled>False</Disabled>
       <Path>Captain_Sim\Captain_Sim.b767.menu.dll</Path>
   </Launch.Addon>
   <Launch.Addon>
       <Name>Captain Sim 767 Sound</Name>
       <Disabled>False</Disabled>
       <Path>Captain_Sim\767\cs.sound.dll</Path>
   </Launch.Addon>

---

If they are not listed, add them manually. Copy the lines above. Scroll to the bottom of the DLL.xml file. Paste them directly above the line reads: </SimBase.Document>. The bottom of the DLL.xml file should then look like this:

   <Launch.Addon>
       <Name>Captain Sim 767 Menu</Name>
       <Disabled>False</Disabled>
       <Path>Captain_Sim\Captain_Sim.b767.menu.dll</Path>
   </Launch.Addon>
   <Launch.Addon>
       <Name>Captain Sim 767 Sound</Name>
       <Disabled>False</Disabled>
       <Path>Captain_Sim\767\cs.sound.dll</Path>
   </Launch.Addon>
</SimBase.Document>

save it.

Mark