Download free Codec Decoder Pack 1.0 on our website. According to the system requirements, Codec Decoder Pack is available for the following OSs: Windows XP/XP Professional/Vista/7/8/10 32/64-bit. The software is a tool which is commonly known as rundll32.exe. The most popular version of the tool that our community members download is 1.0. This program has been checked by our built-in antivirus system, the report shows that this program is 100% secure. Codec Decoder is the creator of this program.