Hi Thundt,
The Unescape String method was changed in 2009. Here are the details:
Files Written with Config File VIs May Not Be Compatible With Previous Versions
Strings are escaped and unescaped differently in the new Config File VIs.
"\n" was previously escaped to "\0A" but is now escaped to "\10".
"\t" was previously escaped to " \09" but is now escaped to " \t".
"\r" was previously escaped to "\0D" but is now escaped to " \13".
Stephen Meserve
National Instruments