I'm posting this here since the Subsim Helo & Flight Simulator forum appears to be u/s:
(Can't use the message box)
I've tried everything I can think of (GOG weren't any help) to find out whether Microsoft's FSX can still be activated in some way and used. I invested a lot of cash in software add-ons for this (photoreal scenery & aircraft) and none of it's of any use since they withdrew support for it - the sim cannot be activated now if you install on a new computer. I used to do it by phone as my gaming PC's are both offline