Microsoft ended all support for Office 2003 in April 2014. Using this software today presents several dangers:
The safest approach is to create your own portable version:
: Includes French and Hebrew versions. Important Considerations
There is no "better" version of FrontPage 2003 portable. The software is obsolete, and the portable versions available are unauthorized, insecure modifications. The superior approach is to adopt modern, supported web development tools.
: You can find ISO images of the original English installation disks on the Internet Archive Product Key