The aacdecdll.dll error message pertains to a problem with a process of the Sony MPEG4 AAC Decoder running on your computer.  To determine whether this is the result of a virus, you need to establish the location that aacdecdll.dll is running from on your PC.  While you may be tempted to do this manually, the easiest and most thorough method is to choose a program that will scan your computer.

Click below to begin a diagnostic scan of your computer’s registry, a list of Dynamic Link Library (DLL) and other files that are shared by multiple programs.  The scan will show you all of the errors on your system and allow you to choose how to proceed.  Computer experts worldwide recommend ZookaWare PC Cleaner to resolve registry-related errors and perform routine maintenance that will optimize your computer’s day-to-day performance.  Only ZookaWare PC Cleaner guarantees 100% registry error removal.