Greetings, Jérôme Bouat! >> If you can't access the internet, how would you download anything >> to your system?
> My organisation forbids the use of IE. The corporate web browser is Firefox. Doesn't change the fact proxy settings are available in control panel. >> What makes you think it is using >> IE's cache? > I just performed this simple test : > 1. clear the IE disk cache > 2. use Setup.exe in order to update cygwin through the "IE proxy settings" > 3. look at the temporary Internet files and the cygwin downloaded packages > directory > You will see your "tar.xz" packages in both files trees. Then your system does something nasty. -- With best regards, Andrey Repin Saturday, October 1, 2016 11:52:02 Sorry for my terrible english...