>LOCAL loUser, loSchema
>
>loUser= GETOBJECT("WinNT://myServer/myName,user")
>loSchema= GETOBJECT(loUser.schema)
>
>FOR EACH p IN loSchema.MandatoryProperties
>	? "Mantitory: " + p
>NEXT
>
>FOR EACH p IN loSchema.OptionalProperties
>	? "Optional: " + p
>NEXT

If there are no mandatory or optional properties assigned for this object, you'll get the described error. You need to check the type of the property before trying to iterate it.

If you can get it, you should check out my article in the Feb issue of FPA for details on how to handle this stuff.