Ok, i don't normally believe in co-incidences, but having posted a "is it time to move on from AS4?" topic in which i said "AS4 has never failed to work in 10 years" well, the next day, uh -oh, AS4 just broke........ DOH!!
Nothing compiles now, all projects return:
avr-gcc: CreateProcess: No such file or directory
error when compiled (projects that worked perfectly yesterday and haven't been touched)
Looking at the WinUpdate log last night it did a fairly comprehensive windows revision, which looks to have spannered something in the Paths?
(as it's an old unsupported XP machine, it generally stays off line, but occasionally i let it connect to the mothership and update itself, which being XP isn't very often as it's now an "unsupported" OS)
So, how do i fix this smart people?
Googling brings back lots of stuff about Paths and Environment Variables i don't understand!
Re-installing AS4 has had no effect, will try the same for WINAVR perhaps?