Cam 3.7z Site
The 3.7z file is a portable build of opentrack, likely aimed at solving DirectShow-related crashes when using specific cameras.
Extract the contents of the .7z file to a known folder. Run: Open the extracted folder and run opentrack.exe . Cam 3.7z
If this version fails, the developer sometimes recommended a further test version, often named 4.7z sthalik, 2016-09-22. To make this write-up more helpful, could you tell me: What specific error are you getting with the camera? often named 4.7z sthalik