Windows 9 was skipped because there may be compatability issues, since there are still reference in software to older Windows 9x versions, drivers, etc. out there.
Makes more sense, thanks.
if(version.StartsWith("Windows 9"))
{ /* 95 and 98 */
} else {
http://www.networkworld.com/article...ft-skip-windows-9-and-jump-to-windows-10.html