missing DPPDLL.dll message

How do I get the missing DPPDLL.dll reactivated?

I have just reverted to Win 7 for a position I have taken and finally got 7 running ( reverted from 8.1 ) but now when I am trying to reinstall my Canon software, I get a message stating I am missing the file dppdll.dll. I have been every where trying to locate this file OR steps to replace.... please advise.

Hi Carole,

Welcome to Microsoft Community Forums. I understand that you are getting message stating DPPDLL.dll is missing.

1)      When do you get this message?

2)      Have you made any changes to the computer prior to the issue?

3)      What is the complete error message?

Follow the methods for troubleshooting instructions.

Method 1:

I suggest you to run the SFC (System File Checker) scan.

Refer to the link to run the SFC scan.

Use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7.

http://support.microsoft.com/kb/929833

Method 2:

I suggest you to perform clean boot and check.

Refer to the link to perform clean boot.

How to perform a clean boot to troubleshoot a problem in Windows Vista, Windows 7, or Windows 8.

**http://support.microsoft.com/kb/929135**

Note:

After performing clean boot start the computer in normal mode.

Follow the steps to start the computer in normal mode.

a.       Click Start, type msconfig.exe in the Start Search box, and then press Enter. If you are prompted for an administrator password or for confirmation, you should type the password or click Continue.

b.      On the General tab, click the Normal Startup option, and then click OK.

c.       When you are prompted to restart the computer, click Restart.

If the issue still persists after performing the above troubleshooting steps and if you have issues related to Windows please feel free to reply us we will be happy to help you.

Thank you.