>What if I already wasn't worried about being sued
>because my country doesn't recognise software patents
What if one would live in a country that do not only recognize software patents but also makes it criminal to infringe them (something for example proposed in Europe not long ago)? Since one doesn't have a license one would still infringe the patent even if Microsoft agrees to not press charges.
Or what if the patent for some reason would end up in someone elses hand than Microsoft? Again since one doesn't have a license, one can be in trouble.