Dawa,

You didn't post the code that was doing the AddProperty.

Are you sure you aren't triggering some sort of error handling that's perhaps executing something like SET STEP ON? Which is indeed not available at runtime.

>In my runtime application, I keep getting an error whereever there is AddProperty in the line of the code.
>Here is the error:
>Error#1001. Feature is not available. The help file describes it as "The Visual FoxPro feature you have attempted to use is not supported in this version of Visual FoxPro."