Changes
→Version 5.1
</remove>
</package>
</source>
To implement a check type between versions you should be aware that Google frequently changes the path to the executable between versions.
<br>5.1.X
<source lang="xml">
<check type='file' condition='versionequalto' path='c:\program files\google\client\google earth\googleearth.exe' value='5.1.XXXX.XXXX' />
</source>
5.0.X
<source lang="xml">
<check type='file' condition='versionequalto' path='c:\program files\google\google earth\googleearth.exe' value='5.1.XXXX.XXXX' />
</source>
Corresponding upgrade commands should 1st uninstall 5.0 then install 5.1
<source lang="xml">
<upgrade cmd='MsiExec.exe /X{CC016F21-3970-11DE-B878-005056806466} /quiet /norestart' />
<upgrade cmd='msiexec /i "%SOFTWARE%\GoogleEarth-Plus-5.1.3533.17131\google earth.msi" /qn ALLUSERS=2' />
</source>