In 2010, The Foundry offered a standalone trial of Keylight. While no longer officially supported, archive repositories sometimes hold the Keylight_CS5_Installer.exe . —always scan with virus software.
If you are still using Adobe After Effects CS5 (or CS5.5), you are part of a dedicated group of editors who appreciate stability, a perpetual license, or legacy hardware compatibility. However, one of the most common and frustrating errors users face is the dreaded “Missing Plugin: Keylight” or finding that their Keylight 1.2 plugin has mysteriously vanished after an OS reinstall. --- After Effects Cs5 Plugin Keylight 1.2 Download
If you have a valid CS5 license, Adobe may provide a restoration tool or direct download link for legacy plugins. In 2010, The Foundry offered a standalone trial of Keylight
Do not download Keylight 1.2 from any site other than Adobe’s official channels or The Foundry’s legacy archive (now deprecated). If you are still using Adobe After Effects CS5 (or CS5
is the specific version optimized for After Effects CS5 (11.0) and CS5.5 (11.5). It operates on both 32-bit and 64-bit systems, though CS5 is primarily a 64-bit application.