Well it happened again.  I had four analysis techniques open in my TradeStation Development Environment and my TS crashed and when I went back to work after restarting they were all garbage.  The easiest way to back up your code is to have NotePad open and while working on your EasyLanguage copy and past your code into a NotePad file.  Do this in stages and if you like you can keep different revisions.   If you don’t want to keep revisions just select all and replace with the code you are copying from the TDE.  Make sure you copy your final changes so that you can archive this in a separate folder and store it on your computer, flash drive or the cloud.  Remember TradeStation stores your analysis techniques in one big library glob.  If that glob gets corrupted and you don’t back up your TradeStation periodically, then you run  a chance of losing all of your hard work.  So definitely back up TradeStation automatically using their software and also back up your coding in a NotePad file.