|Win 1.0 ??|
The commonly used Win versions started with 3.0 - most people didn't use Windows until after Win 3.1 was released in 1992.
Win 95, 98, and 98SE have MsDos 7.x support in the background; so does ME but it was deliberately made harder to use.
You can read any CD in XP that was meant for use in Win 3.0 and up, or Dos, but whether you can install a program from such a CD in XP and make it work properly is a different matter. XP has a Virtual Dos Machine, but it doesn't support a lot of Dos programs properly. Some progams require that you use third party software for XP to do that, and even then it's not possible to make them all work in XP.
If you want to install an old game meant for use in the later Dos versions, there are some really good third party progams out that will allow you to run many of them in XP just fine, if you follow the instructions for what is required for that for the particular game
(The later Dos games were much better than the early Windows games.)
Programs can be run in a compatibilty mode in XP, but that doesn't work properly for everything either.
How to use Windows Program Compatibility mode in Windows XP
There are third party or Microsoft programs you can install in XP that do a much better job of that. E.g Virtual PC, available from the Microsoft web site, however, the latest version of it, 2007, may not be as suitable as the first version, 2004, for older software. Virtual PC also supports old games well, but there's more work involved than for the programs that allow games to work that I mentioned above.
Virtual PC 2004 FAQ!
Virtual PC 2004 SP1 (Microsoft download)