Yes, Novell, Netscape, WordPerfect, Lotus 123, Lotus Notes, Spyglass, Borland, CP/M, OS/2, ColdFusion: all dead or a shell of their former selves. There were many, many more I can't even recall. Most were superior products and didn't lose because they weren't good. Hell, they nearly killed Apple.
Spyglass was a particularly nasty stab in the back:
The deal stipulated that Spyglass would receive a base quarterly fee for the Mosaic license plus a royalty from Microsoft's Internet Explorer revenue.[6]
Microsoft subsequently bundled Internet Explorer with Windows, and thus (making no direct revenues on IE) paid only the minimum quarterly fee.
Spyglass was a particularly nasty stab in the back:
The deal stipulated that Spyglass would receive a base quarterly fee for the Mosaic license plus a royalty from Microsoft's Internet Explorer revenue.[6] Microsoft subsequently bundled Internet Explorer with Windows, and thus (making no direct revenues on IE) paid only the minimum quarterly fee.
Ouch.
https://en.wikipedia.org/wiki/Spyglass,_Inc.