You're looking for information on a portable version of Adobe Photoshop CS5.5 Extended, specifically a "LiTE" version. Here's what I can gather:
This version is an unofficial, modded variant of the original . It is often referred to as "Lite" because it has been stripped of non-essential components—like extra language files, help documentation, and some secondary plugins—to reduce its file size. The "Portable" designation means it can run directly from a USB drive or folder without being formally installed on a Windows or Mac operating system. Full Adobe Photoshop CS5.5 Extended LiTE Portable
Unlike the current Adobe Creative Cloud model, CS5.5 was part of the "perpetual license" era. Users often prefer the one-time nature of older software. You're looking for information on a portable version