Note: Internet Explorer 5.5 includes 128-bit encryption. If you already have Internet Explorer 5.5 installed, you do not need to upgrade your browser with the Internet Explorer High Encryption Pack. If you are running Windows 2000, installing Internet Explorer 5.5 will not change the current level of encryption on your computer, you will need to install the Windows 2000 High Encryption Pack.
The linked to page supports several languages. Win2K High Encryption Pack Redistributable Download (renamed locally as encw2aen.exe)
Now discontinued, this version of MS IE used different rendering code (see Wikipedia: page on Tasman (layout engine)) than other versions of MS IE, and so the latest version of MS IE for the Mac displayed many web pages differently than any version of MS IE for Windows, in some cases due to superior compliance to documented standards than the Windows versions.
Getting MS IE for the Mac:
Wikipedia's page on MS IE for Mac says Microsoft "removed the application from their Macintosh downloads site on January 31, 2006." The site links to Pure Mac: Web Browsers (MS IE section) which links to MS IE 5.2.3 for Mac OS X Intel & PPC Native (download URL) and MS IE 5.1.7 for Mac OS 8/9 PPC Native ("Classic PPC") (download URL). These download URL's are simply redirectors to: MS IE 5.2.3 for OSX, from redirection, to Browsers.Evolt.org from MirrorService.org and MS IE 5.1.7 for MacOS, from redirection, to Browsers.Evolt.org from MirrorService.org. Locally, these files have only been stored zipped since storing them that way allows them to take up less than one third of the disk space, and since the files are available elsewhere.
IE 5.0 RK Chapter 4 says the browser can be installed on "UNIX, including Sun Solaris 2.5.1, Sun Solaris 2.6, and Hewlett Packard HP-UX" "Internet Explorer supports the primary UNIX installed systems. Users can also remotely use Internet Explorer for UNIX from other UNIX operating systems, such as Linux, Silicon Graphics IRIX, and IBM AIX."
Win98SE came with MS IE 5.00.2614.3500 (with 40-bit Cipher Strength).
Microsoft's updates have been listed on a page listing TechNet bullitens. Details about other updates, including older ones, have remained available for continued reference. I have amassed a collection of updates from the Windows Update site right as Microsoft was finally discontinuing support for Windows 98, Windows 98 Second Edition, and Windows Me. Hopefully they'll be somewhere in this download archive eventually.
As mentioned elsewhere on this page, the latest Cumulative Security Patches aren't necessarily the latest patches. I might have some more available in a collection of patches from Microsoft that I had made. Also, MDGX's IE updates section has links to some updates, some of which might not be packages officially created by Microsoft (but may still be good anyway). Microsoft is not releasing further updates to MS IE for Win9X. This does have the positive side that there isn't as much exposure of any remaining flaws, and it is likely that fewer troublemakers will seek out problems in Win9X to exploit as the software becomes older and used less. Still, security concerns and desires for updates may be compelling reasons to switch to newer browser versions, such as MS IE 7 on a newer operating system or Firefox 2.
"The previous edits can affect the stability of the HTTP protocol. Be prepared to switch them back if your browsing becomes unstable." Q282402 says "Changing the maximum number of connections beyond two is a violation of Internet standards; Microsoft does not recommend this procedure for use outside closed networks." Indeed, violating this standard has been treated as a hostile act in the Internet's early years when servers were less powerful and less capable of handling as many users: Some sites might even have banned users for increasing this. Then again, some websites would encourage this, even in the case of a paid commercial site (often viewed as inappropriate for viewing in professinoal settings) which would be harmed by slower server performance. Even Microsoft has stated, "To comply with current Internet standards (Request for Comments 2068), Internet Explorer limits the number of simultaneous downloads to two downloads, plus one queued download. This configuration is a function of the browser. However, as connection speeds increase, and the number of total connections that are allowed to Internet servers increase, the two-connection limit may be restrictive."
To set these to 10 (as per MET's "Speed of Sound" page), see execute (saving to disk if needed) this registry file (modifying the hexidecimal numeric values as desired). If the saved file ends with a .reg extention then common setups will result in RegEdit applying the settings.