We must address the elephant in the room. You will find thousands of "pre-cracked" CorelDRAW X3 portable downloads on torrent sites.
CorelDRAW X3 relied heavily on MSXML 4.0. Modern Windows usually has MSXML 6.0, but the old portable might be looking for version 4. coreldraw x3 portable windows work
If you are looking for specific features that make this version distinct, here are the highlights: Corel PowerTRACE We must address the elephant in the room