>For years it was a license violation to use Microsoft development tools to build a word processor or spreadsheet.
source?
source?
https://proact.eu/wp-content/uploads/2020/07/Visual-Basic-En...
It wasn't a blanket prohibition, but a restriction on some parts of the documentation and redistributable components. Definitely was weird to see that in the EULA for a toolchain. This was removed later on, though I forget if it's because they changed their mind or removed the components.