few more bugs found ...
the folder it remembers is always in AppData/Roaming but not the latest folder i used,
when i was asking for remeber the last folder i was refering to my custom folder not to some default folder deeply hidden in the OS
in the multiple window when i click on start it processes only 1 url, then it stopps, in that case multipe would be useless 

thx for fixing
Comments
well the folder is saved on exit/reload...however maybe I missed some check...
for the other issue I can not reproduce it. If I load a lot urls there and hit the start button, I get one url after the other submitted.
unchecking: thats fixed for next version...realized this myself already.