Microsoft has revamped its YouTube app for Windows Phone 8, which is aimed at addressing some of Google’s concerns over the earlier version, but not all of the terms of service.

After being launched on May 7, the YouTube app for Windows Phone 8, was alleged by Google of violating some of the YouTube terms of service, including not displaying ads and enabling downloading content from the app.

In its cease-and-desist letter about that app, Google has sought that Microsoft either block or pull out the YouTube app from the Windows Phone Store by May 22, 2013.

A Microsoft spokesperson said that the company has updated the Windows Phone YouTube app to address the restricted video and offline video access concerns voiced by Google last week.

"We have been in contact with Google and continue to believe that our two companies can work together to hone an app that benefits our mutual customers, partners and content providers," the spokesperson said.

"We’re earning new customers every day, with IDC reporting recently that Windows Phone posted the largest year-over-year gain among leading operating systems."

According to the software firm, the updated app for Windows Phone disables video downloads, but which still do not display ads.