>>
>>

>>[HKEY_CLASSES_ROOT\Visual.FoxPro.Table\shell\open\command]
>>@="\"C:\\Program Files\\Microsoft Visual FoxPro 9\\vfp9.exe\""
>>
>>[HKEY_CLASSES_ROOT\Visual.FoxPro.Table\shell\open\ddeexec]
>>@="open(\"%1\")"
>>[HKEY_CLASSES_ROOT\Visual.FoxPro.Table\shell\open\ddeexec\Application]
>>@="FoxPro"
>>[HKEY_CLASSES_ROOT\Visual.FoxPro.Table\shell\open\ddeexec\Topic]
>>@="System"
>>

>
>Thanks - I have a customer who had this problem months ago, and I had no clue what was the cause, not to mention a fix.

By default, files associated with VFP are set to open in new instance of VFP. The registry entry looks like below

[HKEY_CLASSES_ROOT\Visual.FoxPro.Table\shell\open\command]
@="\"C:\\Program Files\\Microsoft Visual FoxPro 9\\vfp9.exe\" -SHELLOPEN \"%1\""

In order to open files in existing instance of VFP, DDE has to be used. It causes files to be open twice: once through commnad line and second with DDE. It happens with all files but only noticible with tables.