I’ve installed IceDragon in a my personal computer (Windows 10 - 64 bits). Works perfect.
Then copy to a pendrive and then copy again in my computer at work (Windows 7 - 64 bits). I get an advice that tells me that the file “api-ms-win-crt-runtime-l1-1-0.dll” is missing.
I’ve done an internet search and that dll comes with in a Windows Update.
The point is that I can’t install anything in my computer at work (that’s why I’m using it as portable).
I did the reverse, installed a clean IceDragon at work (Win 7) and copied to my Home (Win 10). It worked perfect.
As you can see I solved my problem, but for those who don’t know how to solve it, I guess IceDragon should be independent of that file.