thanks for Hilmar,
this is my big project, now i am changing the select 6... with names alies .
these codes working was much faster in vp8 and vfp9 beta than vfp9.
When i change the runtime files of vfp9 beat with vfp9. it very slow down.
i check again, change the system date set date in March and replaced the copy beat 9 runtime files in my projec. now i have not slow problem
thanks