That could be an issue, but it seems highly unlikely in this case. Having taken a look at the winapp2.ini from winapp2.com (the file isn't made by ccleaner as best I can tell.) there wouldn't have been any need to reverse-engineer anything. It is an incredibly simple format. Below is one entry from the file. It seems fairly representative. I cannot image he'd need to reverse-engineer their software to figure out what it meant.
[Amazon Kindle for PC*]
LangSecRef=3023
Detect=HKCU\SOFTWARE\Amazon\Kindle
Default=False
FileKey1=%LocalAppData%\Amazon\Kindle\Cache|*.*|RECURSE
FileKey2=%LocalAppData%\Amazon\Kindle\Logs|*.txt|RECURSE