Hi Jim,
Thank you for information. Some applicatin (not a foxpro application shows nearly same performance on both system) for example TotalComander copy file diffrence maybe 1-3 seconds Vista slower.. but with foxpro its more distinct.

>The following lists the performance improvements included in VISTA SP1.
>VISTA SP1 installation Thread #1304723 Message #1304723
>
>There may be something there that provides a clue.
>
>On the other hand, at least until its SP1, VISTA was known to require HUGE RAM (more than 2 GB).
>
>good luck
>
>
>>We try to understand why performance in our application has big diffrence in the diffrent operation system.
>>Exist a network with FileServer where FoxPro database located
>>First computer OS Windows Vista
>>Second OS Windows 2003 Server
>>Both machine has 1Gbt network connection to FileServer.
>>The test results for both machines has realy big diffrence
>>
>>1) SQL Select which return 50 000 records
>> Vista Machne - 16 second,
>> Windows 2003 server 5 second
>>
>>2) Copy 700Mb files with COPY TO command
>> Vista Machine - 49 second
>> Windos 2003 server - 20 seconds.
>>
>>The realy, all peoples want to work on terminal server :))) where performance of application in 3 times better.. but its not realy good solution when 30 clients work with terminal server.
>>
>>Maybe there exist solution.. or.. I want just to understand.. why in the same network configuration, same application, has realy diffrent performance.
>>
>>Thanks for answer
>>Denis Gavrikov