You should never download individual .dll files from third-party "DLL fixer" websites, as these files are often outdated or infected with malware. Instead, use these official methods: Where is my Guitar Rig 5?! - Cubase - Steinberg Forums
Guitar Rig 5 is a powerful amp and effects modeling software developed by Native Instruments . If you are looking for the "Guitar Rig 5.dll" file, it is typically because you are trying to use the software as a VST plugin within a Digital Audio Workstation (DAW) like Cubase, Reaper, or Ableton.
Finding or downloading this specific file can be tricky if it has gone missing or wasn't installed correctly. Below is a guide on how to safely acquire and locate the file. Why You Need the Guitar Rig 5.dll File
The .dll (Dynamic Link Library) file is the of the Guitar Rig 5 plugin. While the standalone application lets you play guitar through your PC, the .dll file is what allows your DAW to "see" and open Guitar Rig on an audio track. 1. Where to "Download" Guitar Rig 5 Safely