You can pass only character type parameters into exe.

! /n C:\work\acct\acct05.exe DTOC(prmstartdate) DTOC(prmenddate)

In exe you'll have to convert it back to date using CTOD().

>How do I pass a command line parameter to a Dos Foxpro 2.6 executable from Visual foxpro. The below code does not work.
>
>prmstartdate = date()-15
>prmenddate = date()
>! /n C:\work\acct\acct05.exe prmstartdate prmenddate
>
>Receiving program.
>
>Param prmstartdate, prmenddate
>
>
>Problem is the values in the variables are displayed as prmstartdate and not the value.
>
>Any help is appreciated.
>Thank you in advance
>Joe Hendren