I know when it gets to that level you get 0 returned if actually doing the maths so I was thinking as its already a double it may be possible to treat it somewhat like a string manipulation in that we want 8 bytes represented as hex, but the registry display in hex qword in not what I would have expected but is correct as dec. As Win 7 x64 regedit can flick between both values at will it makes the formula possible but difficult in x32.
FSO returns disk sizes in bytes which is great but I need to store them as QWords.
In a Reg file however "TotalSize"=hex(b):00,30,88,4c,af,02,00,00 = 2951926525952 which is represented as 8 distinct bytes.
This type of math is not my strength so I am reading whatever I can but its slow going.