The specific version you mentioned, "191038906 x64 portable," refers to an unofficial, "portablized" modification
When the board of directors walked in, Leo was ready. He didn't just deliver a presentation; he delivered a masterpiece. As he ejected his drive and walked out of the room, he patted his pocket. He knew that while the tools don't make the artist, having the right power in a portable package certainly saved the day.
Introduced to simplify path creation compared to the standard Pen Tool.
Because these are not distributed by Adobe, they are often bundled with malware, keyloggers, or trojans.
It is important to understand the risks associated with "Portable" versions of Adobe software: Malware Risk:
While individual end-users rarely face lawsuits, using cracked software violates Adobe’s Terms of Service. Companies and educational institutions have faced fines and audit penalties. Moreover, distributing cracked software can lead to criminal charges under the Digital Millennium Copyright Act (DMCA).
Because this is not an official Adobe release, the "Exclusive" label usually refers to a specific release group (often associated with warez scenes).