I cannot find out much about it other than the fact that it is embedded in that weather program and that if the adware bar is removed, the weather program ceases to function.
Have you been noticing any ads, pop-ups, unusual network traffic or anything?
I heartily dislike the suggestion of turning off your spyware software as a solution. That makes me question the integrity of the software provider and whether this adware bar is indeed spyware.
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SpywareBlaster, WinPatrol Plus, ESET Internet Security, NoScript Firefox ext.