>>

LPARAMETERS toObj 
>>IF PEMSTATUS(toObj, "oGadget", 5)
>>	toObj.oengine=this.oGadget
>>ENDIF

      public void Doit(object toObj)
>       {
>           PropertyInfo pi = toObj.GetType().GetProperty("oengine");
>           if (pi != null)
>               pi.SetValue(toObj,oGadget,null);
>       }

>

Interesting separation... a property is an object, still related to its owner but you can operate on it all the same. A tad more complicated, but as long as it gets the job done, cool.
What's the null in the last line for? And, oGadget isn't defined... shouldn't it be a string literal?

>>

LPARAMETERS toObj
>>	IF toObj.BASECLASS="Timer"
>>		IF toObj.ENABLED AND toobj.interval>0
>>			toObj.ENABLED=.F.
>>			toObj.INTERVAL=0
>>		ENDIF
>>	ENDIF
>>

public void Doit (object toObj)
>        {
>            Timer t = toObj as Timer;
>            if (t != null)
>            {
>                if (t.Enabled && t.Interval > 0)
>                {
>                    t.Enabled = false;
>                    t.Interval = 0;
>                }
>            }
>        }

The AS operator is unintuitive but neat... implicit cast returning a null if it fails? Though, this sounds more like a try-catch "see if this works" code, instead of having an IsA(toObj, tcClass) function. What happens if you try to cast a twice subclassed timer as a timer, do you still get a reference to the original object?

>I'd do a bit more type checking in the first one if it was for production - but even as it stands it is safer than the VFP version...

And what's unsafe in it?