No the CDX doesn't get pulled locally when you open it or when you amend 
records. 

You can test this by opening a table on the LAN in VFP, then running 
Sysinternals Process Monitor and filtering to process name = VFP9.EXE and path 
ends with .CDX. 

Then do some seeks and updates and you will see that it is just reading/writing 
chunks of the CDX on the LAN. 

Obviously if you're not taking advantage of Rushmore optimisation it will be 
doing big, time consuming scans of the DBF instead.

-- 
  Alan Bourke
  alanpbourke (at) fastmail (dot) fm

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