Microsoft Corp., Redmond, WA, recruited boy band `N Sync in its efforts to lure teen subscribers for Internet service Microsoft Network. NSync@MSN will offer the same standard access as MSN, but will entice teens with a media player and instant-messaging service featuring the band and exclusive access to photos, videos, newsletters, and chats. `N Sync gets a cut of the monthly subscriber fees in a three-year partnership that could net the band $20 million to $30 million.