Keene Systems, Inc.

Legacy ASP.NET App? Microsoft’s Support Clock Is Already Ticking

Inherited a legacy ASP.NET application nobody wants to touch? You’re not imagining the risk.

Microsoft’s support clock for older framework versions is already running — not someday, now. Day to day that looks like developers who won’t go near the codebase, security patches that quietly stop arriving, and vendors who shrug when you ask if a new integration will even work with your old framework.

Here’s the part most IT managers and operations leaders underestimate: waiting doesn’t freeze that risk in place. It just moves the eventual rebuild from “planned project” to “emergency,” usually at the worst possible moment — right when a security hole gets exploited or a vendor finally says “no, we can’t connect to that.”

Keene Systems’ team of 50+ professionals has spent nearly four decades modernizing manufacturing and distribution companies’ aging systems — replacing the old foundation with modern ASP.NET Core architecture methodically, on your timeline, instead of in a scramble after something breaks.

If you’ve been quietly hoping your legacy app has more runway than it does, let’s find out for sure.

Book a 20-minute call with our CEO, Lance Keene: https://keenesystems.com/booklance

Your legacy ASP.NET app is on borrowed time. Rebuild it on your schedule, not Microsoft's.
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