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Internet Explorer for Unix
IE Unix.PNG
Oe-Ie5-unix.jpg
Internet Explorer 5 for Solaris
Developer(s) Microsoft
Initial release ?
Stable release 5.01 SP1  (2001) [+/−]
Preview release Discontinued  (none) [+/−]
Written in ?
Operating system Solaris, HP-UX
(PA-RISC and SPARC processors only)
Available in ?
Type Web browser
License Proprietary
Website microsoft.com/unix/ie (archive.org)

Internet Explorer for UNIX was a proprietary graphical web browser that was freely available and produced by Microsoft for use in the X Window System on Solaris or HP-UX. Development ended with a version of Internet Explorer 5 in 2001 and support for it was completely discontinued in 2002.

Contents

Development history

  • May 29, 1996: it was reported that Steven Guggenheimer, product manager for Internet Explorer (IE), confirmed "We're looking into a Unix-based IE. We're talking with partners. We need to find the best strategy -- whether it's ourselves or others".[1] It was further reported that Steve Ballmer, then executive vice president of Microsoft, had shown an interest earlier in the month for a Microsoft browser to run on Unix as part of the strategy to wage the browser wars:

In pursuit of a larger share of the mammoth browser market, Microsoft has been dealing with PC and workstation makers to have its IE browser bundled with newly shipping hardware. Ballmer hinted, however, that not having a Unix browser was posing an obstacle to this OEM-based strategy to try and catch up with No. 1 browser maker Netscape Communications Corp., which holds some 85 percent of the worldwide browser market with its Navigator product line. "We might just have to get one of those," Ballmer said of a Unix-based browser.[1]

  • June 3, 1996: Microsoft contracted with Bristol Technology Inc. under the "Internet Explorer Source Code Porting Agreement" (IE Agreement) to develop a version of Bristol's porting application Wind/U to port IE for Windows to Unix.[2] At this time Bristol also had a contract with Microsoft allowing it access to Windows source code from September 1994 to September 1997.[2][3]
  • July 29, 1996: it was officially announced that Microsoft would develop a native version of IE for "Solaris and other popular variants of UNIX" to be available "by the end of 1996" which would have "equivalent functionality as that provided in Microsoft Internet Explorer 3.0", thus "delivering on its commitment to provide full-featured Web browser support on all major operating system platforms" as well as "supporting and promoting open standards, including HTML, ActiveX and Java".[4]
  • March, 1997: following a dispute which "arose between Microsoft and Bristol concerning each other’s performance of the 1996 IE Agreement"[2] and likely also because of contract negotiations with Bristol to access Windows source code after September 1997 failing,[3][5] Microsoft reversed course and decided to directly port the Windows version in-house using the MainWin XDE (eXtended Development Environment) application from Mainsoft,[6] the main competitor to Bristol Technology.[2] (Microsoft would later also use MainWin to port Windows Media Player and Outlook Express to Unix.[7]) Now well behind schedule, the 3.0 branch was apparently scrapped in favor of 4.0 (that was released for Windows half a year earlier), which used the new Trident rendering engine.
Internet Explorer 4 for Solaris
  • November 5, 1997: a beta of IE for Unix 4.0 was released for testing on Solaris.[8]
  • January 27, 1998: it was reported that IE 4.0 for Solaris was due in March; Tod Nielsen, general manager of Microsoft's developer relations group, joked that "he wanted to launch Internet Explorer 4.0 for Unix at the Ripley's Believe It or Not museum in San Francisco" because of skepticism from those who suspected IE for Unix was vaporware.[9] It was further reported that versions for "HP-UX, IBM AIX, and Irix" were planned[9] (note that at the time MainWin XDE 3.0 was only available for the "Solaris SPARC 2.51 platform", but MainWin XDE 2.1 was "available on Solaris SPARC 2.51, Solaris Intel 5.5.1, SunOS 4.1.4, Irix 5.3, Irix 6.2, HP UX 10.2 and IBM AIX 4.1.5.")[6]
  • March 4, 1998: IE 4.0 for Unix on Solaris released.[10] Later that year a version for HP-UX was released.
  • March 5, 1998: Microsoft reached a settlement with Bristol which "provided mutual releases for any claims arising out of the IE Agreement".[2]
  • 1999 IE 5.0 for Unix on Solaris and HP-UX released.
  • 2001 IE 5.0 for Unix Service Pack 1 released for Solaris and HP-UX.

Versions

There are nine versions officially listed by Microsoft:[11]

  • 4.01 40-bit on Solaris
  • 4.01 40-bit on HP-UX
  • 4.01 128-bit on Solaris
  • 4.01 128-bit on HP-UX
  • 5.0 40-bit on Solaris
  • 5.0 40-bit on HP-UX
  • 5.0 128-bit on Solaris
  • 5.0 128-bit on HP-UX
  • 5.0 SP1 Beta 128-bit on Solaris

However, archived copies of Microsoft's IE for UNIX website indicate that Service Pack 1 was released (presumably in finished form) for both Solaris and HP-UX.[12] It is not known why Microsoft omitted references to these from its official list; Microsoft only hosted 128-bit encryption SP1 patches, so it is likely that there are three other versions as well:

  • 5.0 SP1 Beta 128-bit on HP-UX
  • 5.0 SP1 128-bit on Solaris
  • 5.0 SP1 128-bit on HP-UX

5.0 Readme highlights

Notable items from the IE for Unix 5.0 Readme:[13][14]

  • "Internet Explorer 5 for UNIX supports most of the features and technologies of Internet Explorer for Windows, but also differs in some respects. For example, Internet Explorer for UNIX does not support downloadable ActiveX controls or browsing and organizing your local files and folders within the browser window. Other unsupported features include filters/transitions in CSS, the DHTML Editing component, and HTML Applications (HTAs). [...] Internet Explorer for UNIX offers some features not found on the Windows version as well, such as Emacs-style keyboard shortcuts and external program associations."
  • Microsoft had a newsgroup named "microsoft.public.inetexplorer.unix" on its public news server msnews.microsoft.com
  • "The User Agent String for Internet Explorer 5 is static except for the third field which depends on the Operating System and the processor you are using. Here are some common configurations and the user agent strings generated by Internet Explorer on these platforms:"
SPARC 5, Solaris 2.5.1       Mozilla/4.0 (compatible; MSIE 5.0; SunOS 5.5.1 sun4m; X11)
Any Ultra, Solaris 2.5.1 Mozilla/4.0 (compatible; MSIE 5.0; SunOS 5.5.1 sun4u; X11)
Any Ultra, Solaris 2.6 Mozilla/4.0 (compatible; MSIE 5.0; SunOS 5.6 sun4u; X11)
HP 9000 C-180, HP-UX 10.20 Mozilla/4.0 (compatible; MSIE 5.0; HP-UX B.10.20 9000/780; X11)
HP 9000 K-250, HP-UX 10.20 Mozilla/4.0 (compatible; MSIE 5.0; HP-UX B.10.20 9000/802; X11)

Disappearance

The homepage for IE for Unix was abruptly removed from Microsoft's website in the third quarter of 2002 without explanation, replaced with the terse message: "We sincerely apologize, but Internet Explorer technologies for UNIX are no longer available for download."[15] It was noted however, that while the homepage had been removed, the actual download page remained up for a time.[16] The reason given by Microsoft's PR firm was that "low customer demand for this download did not justify the resources required for continued development."[17]

See also

References

  1. ^ a b Microsoft leans toward a Unix platform version of its Internet Explorer browser - Dana Gardner writing for InfoWorld Electric (May 29, 1996)
  2. ^ a b c d e Bristol Technology v. Microsoft - ruling by Janet C. Hall, Connecticut District Court judge (November 3, 2000)
  3. ^ a b Tech Law Journal: Bristol Technology v. Microsoft - article from Tech Law Journal (February 21, 2001)
  4. ^ Best-of-Breed Browsers for Multiple Platforms - press release from Microsoft (July 29, 1996)
  5. ^ Microsoft Files Opposition to Bristol's Motion for Preliminary Injunction - article from Tech Law Journal (September 30, 1998)
  6. ^ a b Microsoft launches Internet Explorer on Unix - press release from Mainsoft (March 4, 1998)
  7. ^ Microsoft to port Internet Explorer technologies to Unix - press release from Mainsoft (August 14, 2000)
  8. ^ Microsoft's Internet Explorer 4.0 for Solaris (Screenshot) - Robert McMillan writing for SunWorld (November 5, 1997)
  9. ^ a b Microsoft says Unix browser is on schedule - Bob Trott writing for InfoWorld Electric (January 27, 1998)
  10. ^ ibid
  11. ^ How to determine which version of Internet Explorer is installed - Help and Support page on Microsoft's website (August 17, 2005)
  12. ^ Internet Explorer for UNIX Home Page - old version of webpage ("Last Updated: October 29, 2001") from Internet Archive
  13. ^ Internet Explorer 5 for Solaris - README file included with IE5 for Solaris (February 2, 1999)
  14. ^ Internet Explorer 5 for HP-UX - README file included with IE5 for HP-UX (March 17, 1999)
  15. ^ Internet Explorer for UNIX Home Page - current ("no longer available") version of webpage
  16. ^ Internet Explorer for UNIX Discontinued - article from MozillaZine (September 19, 2002)
  17. ^ Who killed IE for Unix? - Jim Lynch writing for ExtremeTech (October 3, 2002)

External links








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