How to load Google Earth Toolbox?

I have insert this in the command window

addpath('C:\Program Files\MATLAB\R2009a\toolbox\googleearth')

and place the download file in the Matlab program file.

However once I click on the start menu >> Toolbox, the Google Earth Toolbox doesn't show up!! But I can view the demos help in the help window.

What should I do to load the file??

Edited

When I input this

>> googleearth -docinstall

the message response is this

Adding 'demo' folder to the path...Done.
Warning: Non-fatal error during version file update. 
> In googleearth at 29
Warning: An error occurred during writing of googleearth 'info.xml' file 
> In googleearth at 52
Adopting user-customized styles for documentation files...
Warning: An error occurred during writing of googleearth 'ge_styles.css'
file...Proceeding. 
> In googleearth at 129

Click on the MATLAB Start button->Desktop Tools->View Source Files...
...and click Refresh Start Button.

[Kirk Bienvenu]

Bump

Answer 1

[Jacob Halbrooks]

You might need to update your toolbox path cache. This is typically necessary after adding files underneath the toolbox folder:

rehash toolboxcache

[Kim]

I have updated the toolbox path cache but there is no effect to the system. The Google Earth Toolbox didn't show up