Though initially appearing only in fan work, the OS-tan proved popular enough that Microsoft branches in Singapore and Taiwan used the OS-tan concept as the basis for ad campaigns for Internet Explorer and Microsoft Silverlight, respectively.
Meskipun awalnya hanya muncul dalam karya penggemar cabang Microsoft di Singapura dan Taiwan menggunakan konsep OS-tan sebagai dasar kampanye masing-masing untuk Internet Explorer dan Microsoft Silverlight.