Google Search with satellite imagery without installation.
Download Portable Google Earth Online (0.5 MB)
Download Portable Google Earth 6.2.2.6613 (15.7 MB)
Extract and run GoogleEarthPortable.
Cache in temp folder deleted when leaving, if you want to keep cache in portable folder (to use offline) edit GoogleEarthPortable.ini.
Settings of installed GoogleEarth should be preserved.