Although Microsoft has stolen things (e.g. from Stac Electronics¹) in this circumstance I believe you've confused "stealing" from Gary Kildall with "licensing"

Although Microsoft has stolen things (e.g. from Stac Electronics¹) in this circumstance I believe you've confused "stealing" from Gary Kildall with "licensing" from Tim Patterson². ¹ https://en.wikipedia.org/wiki/Stac_Electronics#Microsoft_lawsuit https://en.wikipedia.org/wiki/Stac_Electronics#Microsoft_law... ² https://en.wikipedia.org/wiki/MS-DOS#History https://en.wikipedia.org/wiki/MS-DOS#History