What's so impossible about this?
"The next version of Windows will not run older applications, in particular the application on which our business relies. The version of Windows currently deployed throughout our company will stop receiving updates to correct security defects on 20xx-04-xx, and vulnerabilities discovered after that date are likely to expose our customers' private data to criminal intruders, in turn harming the reputation of our business. Therefore, to continue our business, we need to migrate either off this application or off Windows. Contributing to the Wine project will let us ditch Windows once extended support ends."