Are you seeing repeated pop-up windows asking you to download a file called ADSAClient31?   Same here – I’ve had a number of pop-ups appear over the last couple of days?


It appears we’re not alone!   The culprit seems to be Microsoft Messenger which is causing the errant download messages due to problems with some adverts.  

You can cancel the download of ADSAdClient31, however the downloads appear quite often, so until Microsoft fix the problem we have a work around which helps you block the adverts from a previous blog post:

Block Windows Live Messenger 2011 Pop-Up Window