Code:
set location(IODIR) "D:/ioFTPD"
set location(IOLOG) "D:/ioFTPD/logs"
set location(RULES) "D:/ioFTPD/help/rules.msg"
# need ioA 1.0.5+
set location(NUKESLOG) "D:/ioFTPD/scripts/ioA/ioA.nuke.log"
set location(UNNUKESLOG) "D:/ioFTPD/scripts/ioA/ioA.unnuke.log"
set location(CMDSLOG) "D:/ioFTPD/scripts/ioA/ioACommands.log"
In the config you pasted you have for some reason changed to the other type of slash, \.
That will be why its not working.