While the idea of is appealing for architects and engineers who need to work across different workstations without installation, it is important to clarify that Corel does not officially offer or support a "portable" version of CorelCAD.
The only safe portable version is the one you build yourself from an official Corel installer using your own license. corelcad portable
If you answered "yes" to these, then building a drive is a worthwhile weekend project that will pay dividends in productivity. While the idea of is appealing for architects