Ohh ye ye broo..Open (DataInfo.ini) and enter the password as in the example below.
Code:
if not ISArcExtract ( 0, 100, ExpandConstant('{src}\{#Data}'), ExpandConstant('{app}\'), '', false, 'Your_Password', ExpandConstant('{tmp}\arc.ini'), ExpandConstant('{app}\'), notPCFonFLY{PCFonFLY}) then break;
Saves and Enjoy..