Corel does not provide an official portable version. To run it portably from a USB drive:
While CorelDRAW 12 is a legacy version (released in 2004), finding an "interesting piece" of information often revolves around its unique position as one of the last versions designed for lightweight, high-speed performance on older Windows systems—making it a favorite for "portable" setups. The "Smart" Innovation coreldraw+12+portable
Use (setting it to Windows XP Service Pack 3). Corel does not provide an official portable version