In general, it's recommended to use the latest versions of software for security, compatibility, and performance reasons. If you're looking for free or low-cost CAD solutions, consider exploring alternatives like LibreCAD, DraftSight, or other open-source CAD software. For media encoding and decoding needs, there are also several free and open-source tools available, such as FFmpeg.
: You can find security updates and runtime files for WMF 9.5 on the Microsoft Download Center Third-Party Codecs : Sites like download windows media format 9.5 autocad 2009
The Windows Media Format 9.5 components are typically part of the Windows Media Format Runtime or the legacy Windows Media Format 9.5 SDK Official Microsoft Download In general, it's recommended to use the latest