Jignesh,

Fundamentally the only difference in VFP is whether or not you want to use the return value. If you do you have to call it as a function.

* call as procedures
do proc1
do func1

* call as functions
? proc1()
? func1()

procedure proc1()
return 1

function func1()
return 2

You should also look at the help topic for UDFPARMS.

>I have never used function, but I use procedure and it is returning value every time when I call it.