There's this irrational demand vocal on social media that large corporations keep their products forever.
https://www.wired.com/2015/09/what-to-do-with-your-zune-rip-...
The company who STILL supports 16-bit apps?
https://www.groovypost.com/howto/enable-16-bit-application-s...
Ya... I would hardly say MS is known for killing stuff early - more like they've spent years being ridiculed for carrying baggage forward for decades longer than anyone else.
MS might be bad at a lot of things, but I'd hardly say they're known for "burning products with little notice".
- Business Contact Manager for Outlook, Outlook Customer Manager
- Microsoft Invoicing, Listings etc.
And these are critical applications for a company.
Have a look at Sharepoint which is widely used and has an uncertain future. Or the strategy behind Lync, Skype and now teams.
But we'll see. Microsoft has shifted in a good way in the last couple of years but their track record in keeping legacy operating system APIs for decades is not necessarily a good indicator of the stability of their other product lines.
Microsoft Invoice has transitioned to a cloud-based product, so again, they didn't end support. You might not like the new purchasing model, but that's very much different than them burning the product to the ground.
https://einvoice.microsoft.com/Default.aspx?MSIStateKey=f513...
Sharepoint is the backend for onedrive for business, and fully integrated in to Teams. What on earth would make you think it's going away?