Portable Catia V5 R21 -

Before you click "Download" on that sketchy forum link, consider these very real threats.

While a true “no-install required” version doesn’t exist, professionals have developed several legitimate workflows to use CATIA V5 R21—or newer versions—on multiple machines without reinstalling each time. Portable Catia V5 R21

: Official "portable" versions are not supported by Dassault Systèmes. Users should be aware that these versions often bypass standard licensing and can pose significant security risks , such as embedded malware or data instability. Google Docs Technical Specifications (R21) Before you click "Download" on that sketchy forum