Not getting any hits for a dll in the windows folder for me is suspicious in its own right.
The message is basically the orphan registry key trying to run the file which now resides in the chest.
You could do a registry search for HPODESt.dll and if you are confident working in the registry delete only that element in the key in which it is found. If not best to leave well alone.
You could try a registry cleaner or a general cleaner like
CCleaner - Temp File Cleaner, etc.. This has Registry section and you can click the Fix Issues and see if it finds this key, etc.
Or you could try an anti-malware that looks in the registry for associated malware keys.
If you haven't already got this software (freeware), download, install, update and run it and report the findings (it should product a log file).
Don't worry about reported tracking cookies they are a minor issue and not one of security, allow SAS to deal with them though. - See
http://en.wikipedia.org/wiki/HTTP_cookie.