Ad Specifications

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Microsoft Mobile Browse Rich Media


In-Banner Rich Media is supported for both 320x50 and 300x250 art sizes. The 320x50 ad placement also supports Expandable Banner Rich Media.  On initial tap, a panel will expand to 320x416 or Full Screen. On tap-to-close, the expand panel will collapse.

Supported art sizes:

  • 320x50
  • 300x250

Supported properties:

  • MSN Homepage
  • MSN Verticals
Spec Classification: 
Spec Placement: 
MSN Homepage
File Type: 


Max Initial Load File Size: 
200 KB
Host Initiated Sub-Load File Size: 
300 KB
User Initiated File Download File Size: 
Max Animation Time: 
:30 seconds
Max # of Loops: 
3 times max looping within max duration
Backup Image Submission Guidelines: 
Back up image is required for instances when the user's browser does not support creative functionality (e.g. Flash, HTML5, JavaScript). Recommended file size 50K.
1x1 Black Border Required: 
Initial size ad creative must feature a 1 pixel border (gray [#666666] or black recommended, though any color that clearly distinguishes the ad from the content may be used).
Close Button Requirements: 
Expanded ad unit must include a close button marked with “Close X” in the upper right corner. Font 8pt (11px) – 16pt (21px).
Video Play Options: 
Video allowed in 300x250 in-banner only. Video allowed in 320x50 expanded banner only.
Max Video File Weight: 
Host initiated / User initiated: 2.2MB file weight for progressive
Required Controls: 
Play/Pause and Mute/Unmute button
Video File Type: 
.avi, .mov., .mp4
Third Party Serving: 

US Market: 3rd party serving is not accepted
Other Markets: 3rd party serving accepted

Third Party Tracking: 
Submission Guidelines: 

Data Collection:

  • Microsoft permits advertisers to collect user-provided personal information (for example, through web forms embedded in ads). 
  • Advertisers may be required to modify ad units or provide additional disclosure in order to be acceptable for advertising on Microsoft sites. 
  • Advertisers wishing to collect personal information within advertisements (according to specifications above) must follow these guidelines: 
    • Clearly identify the organization
    • Provide link to privacy policy
    • Identify purpose for collection information
Key Creative Guidelines: 
  • Animation allowed without user initiation in the in-banner and expanded banner units
  • Click destination URL must open in a new browser. Landing pages must be mobile optimized


  • Audio on/off toggle button must be present at all times when sound is available
  • All ad audio must be muted or paused on click-through


  • MSN requires SSL ad serving
  • Both ads and tracking tags must be SSL compliant
  • Ads that are not SSL compliant will not be accepted
  • All 3rd party content must serve SSL (https) compliant ads
Supported Countries: