Hi: AllI have down loaded SP1 for FSX,(many times) and get a error missage when trying to install saying "is not a vaild Win 32 application" I did do a NEW install on FSX before trying to install SP1?My system is a AMD Athion 64X2 Dual 3800 processor with 2.0 GHZ 3.00 GB RAM. running Windows XP PRO.CheersBuda1

Is the file downloading with a .exe extension? The file name should be fsx_sp1_ENU.exe (english version) . Even if you see a .exe extension try renaming the file to something like SP1.exe (by typing the whole name) and see if that helps. Can you execute other .exe files? Here's a good list of the usual causes of that error http://www.computerhope.com/issues/ch000726.htm .Doug

DougThanks for your input on the problem I was having! it give me a starting point. I tried all the trouble shooting steps and I still had no luck? I have a neighbor that also so has Hughes Satellite internet system like mine and I had him down load the SP1 update! and Low & behold the Bloody thing installed,(it was a clear day) I remember when I was down loading the SP1 we had a storm coming in to the area? which could & Did mess up my three down loads of SP1! go figure??? so I'm up & Running and waiting for PIC/Feelthere to come up with a patch for the B737-300/400/500 ACFT. so I can really enjoy FSX???CheersSki