I think all here know what is it 
Here are...
Closed source promotion removed by moderator JTH
New: Run-Command (Dec 2, 2024), Platform 29.5.3 (Jun 27, 2024)
1,100+ portable packages, 1.1 billion downloads
No Ads Nov/Dec!, Please donate today
New: Run-Command (Dec 2, 2024), Platform 29.5.3 (Jun 27, 2024)
1,100+ portable packages, 1.1 billion downloads
No Ads Nov/Dec!, Please donate today
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As has been discussed before, all of U3's tools including U3 Action and the U3 installer are 100% closed source/proprietary. Any app that includes U3 Action is Freeware (not 100% open source), so it can't be promoted here.
Sometimes, the impossible can become possible, if you're awesome!
Ok... sorry for this