Finding a "portable" download link for Microsoft FrontPage 2003 is difficult because it is and Microsoft does not provide official online downloads for it. While "portable" versions often circulate on unofficial sites, they carry high security risks.
Are you looking to created in FrontPage, or are you starting a brand-new project from scratch? microsoft frontpage 2003 portable download link
The "Web 1.0" aesthetic is a specific design choice for some retro-enthusiasts today. Modern Alternatives to FrontPage Finding a "portable" download link for Microsoft FrontPage
This was Microsoft’s official replacement for FrontPage. It was eventually released as a free download and handles modern web standards much better than its predecessor. How to Safely Run Legacy Web Software The "Web 1
: Unofficial "portable" versions are often hosted on untrusted third-party sites. These files are notorious for carrying Trojans, ransomware, or spyware because they bypass standard installation security checks.