This way, Microsoft Windows will allow the user to search for the text contents of their source code inside .ahk files, as with regular text files.[HKEY_CLASSES_ROOT\.ahk\PersistentHandler]
@="{5e941d80-bf96-11cd-b579-08002b30bfeb}"
How? Ctrl+F in Windows Explorer, then type into the Search box:
content:<keyword>
where <keyword> is the text you wish to find. eg: content:SetTimer