Windows IE "Program Compatibility Assistant" pop-up

[Erythrocyte]

Getting messages on opening files with media player and some streaming sites, running XP. Popup titled "Program Compatibility Assistant". Message says "This program requires a missing Windows Codec". The popup takes me to a payed site for a codex.

I ran both Malwarebytes and Symantec Antivirus systems. Found some Trojans and spyware which were removed, however the problem still persists.

Not sure what to do next or how to get rid of the problem.

[Erythrocyte]

I've tried everything I could think of but the problem still persists. I really would appreciate any help with this issue. From another thread for a similar problem, it suggested removing older version of Java. I did this but nothing has changed.

Thank you for any assistance.

[Maniac]

Hello Erythrocyte! Welcome to Malwarebytes' Anti-Malware Forums!

My name is Borislav and I will be glad to help you solve your problems with malware. Before we begin, please note the following:

• The process of cleaning your system may take some time, so please be patient.
  
• Follow my instructions step by step if there is a problem somewhere, stop and tell me.
  
• Stay with the thread until I tell you that your system is clean. Missing symptoms does not mean that everything is okay.
  
• Instructions that I give are for your system only!
  
• If you don't know or can't understand something please ask.
  
• Do not install or uninstall any software or hardware, while work on.
  
• Keep me informed about any changes.
  

Please follow these instructions and post all logs if you can:

http://forums.malwarebytes.org/index.php?showtopic=9573

[AdvancedSetup]

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