>>>>No. If anything you should see a small increase in speed because the OS will be using both cores.
>>>>
>>>>>Using VFP, if I upgrade to a dual core system, will the execution speed of my VFP apps slow down because VFP only uses one side of the dual core system?
>>>
>>>Thank you , young fellow.
>>
>>I suppose the next question to ask is: Does SQL Server take advange of 64 bit dual core processors?
>
>It appears to. We are using SQL 2005 64Bit Standard and Enterprise editions on a number of multiple XEON dual-core processor servers, and it really flies!

Hot dang - Then I'll upgrade soon.