I deleted program, there wasn't any WTF file listed.
I ran a search for FastCast and can't find any reference to it on my computer.
Sent a message to the author of FastCast, no response yet.
Can't find how to get rid of:
FastCast\FastCast-7.3.1.lua:112: in function `Run'
FastCast\FastCast-7.3.1.lua:146: in function `FastCast'
[string "FastCast('Haste', 'Resuscitate')"]:1: in main chunk