After Cleanup- Is this still a sign of Malware?

I accidently ran a downloaded file that was full of trojans, malware, etc. I seem to have most of it cleaned up (from what I can tell) by using a bunch of different automatic Anti-Malware/Trojan scanners (Spybot, Malwarebytes, AVG Free, Windows Defender, Adaware, etc.) but I'm still getting this strange dual alert from WinPatrol every few minutes when my XP system is running:

The first alert looks like this:

-----------------------------------
WinPatrol File Type Change Alert

File Type: .REG

Program currently associated with this file type:

Microsoft Windows Operating System
Microsoft Corporation

regedit %1


A Change was made to use the following program for this file type:

Microsoft Windows Operating System
Microsoft Corporation

regedit %1 %*
----------------------------------------------------


And then a second alert right after looks like this:

----------------------------------------------------
File Type: .SCR

Program currently associated with this file type:

Name
Company Name

%1 /S


A Change was made to use the following program for this file type:

Name
Company Name

%1 %*
------------------------------------------------


I say "no" and don't allow the change every time, but it just pops up again a few minutes later. Does anyone know what this means? Could it be a sign that I still have some type of infection? Other than this Winpatrol alert, I have no obvious signs or indications of infection. Thanks!