You are misinformed. Microsoft even supports Vista, not to mention 7. [1] In addition, if XP support deadline extensions are anything to go by, then these Windows 7 end-of-support dates will get moved several times until they stick. Beyond that, Windows 7 remains by far the most popular Windows version, exceeding the combined market share of Windows 8, Windows 8.1 &amp; Windows 10. [2][3]<p>Unrelated to market share &amp; OS updates, there&#x27;s the technical question. There aren&#x27;t many Win32 APIs which are present in Windows 8, but not Windows 7. Thus it&#x27;s not that likely that Windows 7 wouldn&#x27;t be supported by a Win32 app (which this is), unless they go out of their way to make it so.<p>[1] <a href="http:&#x2F;&#x2F;windows.microsoft.com&#x2F;en-us&#x2F;windows&#x2F;lifecycle" rel="nofollow">http:&#x2F;&#x2F;windows.microsoft.com&#x2F;en-us&#x2F;windows&#x2F;lifecycle</a><p>[2] <a href="http:&#x2F;&#x2F;www.w3schools.com&#x2F;browsers&#x2F;browsers_os.asp" rel="nofollow">http:&#x2F;&#x2F;www.w3schools.com&#x2F;browsers&#x2F;browsers_os.asp</a><p>[3] <a href="https:&#x2F;&#x2F;www.netmarketshare.com&#x2F;operating-system-market-share.aspx?qprid=10&amp;qpcustomd=0" rel="nofollow">https:&#x2F;&#x2F;www.netmarketshare.com&#x2F;operating-system-market-share...</a>