Adding a rule to winapp2.ini

I'm trying to add a rule for CCleaner in winapp2.ini to delete history entries for Nitro Pro, a PDF software. Yet CCleaner can't find the file whose path I add into winnap2.ini. The path to the file is:

"D:\Users\<username>\AppData\Roaming\Nitro\Pro\13\NitroPDFHistory.dat"

The entry that I add in winapp2.ini is:

[Nitro Pro *]
LangSecRef=3021
Detect=HKCU\Software\Nitro\Pro
Default=False
RegKey1=HKCU\Software\Nitro\Pro\13\Recent File List
FileKey1=%AppData%\Nitro\Pro\13\NitroPDFHistory.dat

CCleaner finds and deletes the registry key just fine, but not the file. I've read the pages here and here, but still can't seem to figure out what I'm typing -- or not typing -- incorrectly.

Any help would be appreciated.

OK, I just figured out the problem. I was missing a pipe ("|" character) after the last backslash.