This was my first guess too. I tried this (and a lot more), but there seems to be no reference hanging at all.

Besides, if you have a reference and you remove the object, the reference itself is being destroyed as well.

loForm = NEWOBJECT("Form")
loForm.AddObject("Test","Label")
loTest = loForm.test
loForm.RemoveObject("test")
?loTest.Name && This raises an error!

Also what is happening is, that the same code that is called from the button

THISFORM.DoProcess

works fine, and when using the key F10

ON KEY LABEL F10 _SCREEN.ACTIVEFORM.DoProcess()

the problem occurs. There must be a connection with the ON KEY, the code itself must be good.

>Christian,
>
>You can't get rid of an object while a reference to it is being held. Your loBatch is still pointing to the object you are trying to remove. Try making this small mod:
>
>

>local lcName
>FOR lnNr = lnNumberOfBatches TO 1 STEP -1
>	*
>	loBatch = THIS.TicketsDisplay.Controls[lnNr]
>	loBatch.DoCreateCertificate(lnBatchNr)
>      lcName = loBatch.NAME
>      loBatch = .null.
>	THIS.TicketsDisplay.REMOVEOBJECT( lcName )
>	*
>ENDFOR
>

>
>>I have trouble releasing a form, but I have no idea why. I checked for outstanding object references (Objref.exe), there are none.