I have structured this post to guide users toward safe fixes (updates, reinstallation, official patches) rather than shady DLL download sites, which often contain malware.
Are you excited to start editing your videos with Magix Video Deluxe 2013 Plus? In this blog post, we'll walk you through the process of downloading and installing the software, including the necessary protein.dll file. magix video deluxe 2013 plus protein dll download install
Check installation folder
This is the most reliable fix.
MAGIX includes a built-in repair tool.