Not really ,its normally for me the path that has something missing like a extra Microsoft part to the string ,though you mite need to change the
true partof the dll to
false which turns on the tools ,if they set as
true in the dll they will not show up in the menu
<Launch.Addon>
<Name>Object Placement Tool</Name>
<Disabled>
False</Disabled>
<ManualLoad>False</ManualLoad>
<Path>C:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X SDK\SDK\Mission Creation Kit\object_placement.dll</Path>
</Launch.Addon>
<Launch.Addon>
<Name>Traffic Toolbox</Name>
<Disabled>
False</Disabled>
<ManualLoad>False</ManualLoad>
<Path>C:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X SDK\SDK\Environment Kit\Traffic Toolbox SDK\traffictoolbox.dll</Path>
</Launch.Addon>
<Launch.Addon>
<Name>Visual Effects Tool</Name>
<Disabled>
False</Disabled>
<ManualLoad>False</ManualLoad>
<Path>C:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X SDK\SDK\Environment Kit\Special Effects SDK\visualfxtool.dll</Path>
</Launch.Addon>
<Launch.Addon>
see if that does it ..
