Hello,
RunDLL error at startup is a fairly common error and can be related to your antivirus removing a file perceived as a threat, but not the autostart task or scheduled task to run it.
You should be able to see in your antivirus logs if the file was removed after being identified.
This file is by some antivirus defined as "PUP.DealPly"
A potentially unwanted browser addon that can ad adds and popups to your browsing experience.
If you have not found any negative effects of the error, the simplest way to get rid of the error, is to stop Windows from attempting to load this file.
How to remove the task attempting to run the missing file;
1. Download the free program Autoruns by Microsoft.
Click Here:
http://download.sysinternals.com/files/Autoruns.zip
Link basis:
http://technet.microsoft.com/en-us/sysi ... 63902.aspx
2. Run Autoruns (as admin) and find the yellow highlighted Image Paths that ends with the filename in your error message. Usually you can locate those image paths from the tab named "Scheduled Task".
3. Right click any yellow highlighted row ending with the filename and path from the error message, and choose delete.
4. Try to find all yellow highlighted Image Paths that ends with the filename and path from the error message from "Everything" tab, delete them.
NOTE: Carefully choose image paths that ends with the filename from the error message only, if you deleted paths that are not highlighted then it might cause some trouble booting your PC.
5. Reboot Computer