There’s no error, this is a Service Pack 4 notification for Active Sky Evolution (ASE) users, who combine it with FS2004 or FSX.

If you have Active Sky 2012, forget it, as this is only made for ASE ! FS2004 pilots equipped with the realistic weather / environment textures tool will benefit of many enhancements and fixes listed here.

Press release :

“ASE is HiFi’s legacy weather engine recommended for FS9 (FSX compatibility is also included), which includes dozens of realism-based features including visual mapping, planning, weather gauge, hurricane simulation, wake turbulence, private server access, historical weather, voice flightwatch and much, much more.  For additional details about ASE and/or to download the SP4 update, please visit HiFi’s website at http://www.hifitechinc.com.

Please note that this update is for ASE users only, and is not applicable to users of other products such as AS2012.“