Just trying to condense.
Question:
Why does the command-line program (ipconfig) freeze as well from the loop?... I thought (read from other posts on these forums) that even infinite loops wouldn't affect anything outside mIRC because of cpu time pieces or something
Answer:
You're doing a hard-loop checking the content of a variable of which doesn't exist, which basically sucks *ALL* CPU cycles away from everything else.
The cmd freezes (i.e. replies that slow) AS mirc freezes in the infinite loop (i.e. eating all that cpu - thats not a bug)
