Even Pampa Browser is getting long in the tooth, with the last update on April 22, 2018. It would crash almost immediately after execution on both 2000 and 2003 machines with .NET Framework 4.0 installed, even with no missing dependencies in 2003 (with the exception of ieshims.dll, which doesn't exist in my 2003 or XP x64 systems, and is a delay-load module anyway). It also bundles an "extra" component, a "YouTube Manager".