I work at Microsoft.  I don&#x27;t speak for the company but feel like sharing my experience.<p>We do have to comply with certain restrictions (e.g. don&#x27;t do it on company time, company property, company equipment; don&#x27;t compete with the company), and I&#x27;d definitely read the full legalese before trying to make a paid app.  But it&#x27;s not anywhere near as bad as &quot;everything you write while you work here is ours.&quot;