Okay I give up. Given the user agent string below, which browser is being used? It might be IE8, since I can't envision firefox sending this. If it is IE8, why the hell is the "Mozilla" string in there? I am not familiar with the history or taxonomy of this stuff. Also, from whence does the string "OfficeLiveConnector" arise? I am not familiar with this product.
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E; BRI/2)