propsys.dll

I’m having a Windows XP desktop running with P4 and Norton Antivirus. Everything was working fine but yesterday suddenly I received an error from Norton SystemWork's WinDoctor saying:

“C:\Program Files\Common Files\Corel\Shared\Shell Extension\PropSchemaReg.exe" cannot access a necessary file, "propsys.dll”

As far as I know this file should be under C:\Windows\System32\ directory but when I check the same I dint found it anywhere. Not even under hidden files. So it seems the propsys.dll file is missing. Can anyone please tell me how can I get the new one?

Thank you.

Ok, it seems like i fix the problem myself. I searched for the file on web and found one to download at afreedll.com. I copied it to the same folder and now there is no more error message from Norton Internet Security as it passed the file. Thanks by the way.