The most reliable way to ensure is to wrap the existing installation using the PortableApps.com platform.
Officially, CorelDRAW X3 was designed for Windows 2000, XP, and Server 2003. Windows 10/11 Compatibility: coreldraw x3 portable windows work
When a designer's main PC crashes, an IT tech can run CorelDRAW X3 portable from a recovery USB to open .cdr files and convert them to .pdf or .ai for another designer. The most reliable way to ensure is to