[gurkendoktor]

It was probably the placeholder icon for MFC apps, shown in the middle at the end of this blog post:

https://blogs.msdn.microsoft.com/vcblog/2017/02/27/happy-25t...

[laumars]

Ahhh yes, that looks familiar. For some reason I don't remember it with lettering on it though. With the lettering the MFC and steps logos aren't actually that alike.