' Unfortunately, LOF() returns a signed LONG,
' which means that sometimes when we're dealing
' with a file that is bigger than 2GB, then we're
' going to get a negative number for file size!
' This function corrects this error by returning
' the correct file size.
'
FUNCTION FILESIZE# (HANDLE)
    L# = LOF(HANDLE)
    IF L# < 0 THEN L# = L# + 4294967296#
    FILESIZE# = L#
END FUNCTION