Due to changes in the API in 4D 2003, it’s currently not possible to get the name of the variable dropped on 4D Agenda in a compiled database in 4D 2003/2003.1/2003.2 To solve this problem change your AG_DropHandler method to the following code The method for the “AG_DropHandler” method C_STRING (32;$1)        `Variable name C_LONGINT ($2)  `Array index, if the dropped item is an array element C_LONGINT ($3)  `Table number, if the dropped item is a field C_LONGINT ($4)  `Field number, if the dropped item is a field C_LONGINT ($5)  `Event ID C_DATE ($6)     `Date location of the drop C_TIME ($7)     `Time location of the drop C_LONGINT ($8)  `Process number where the drop came from C_BOOLEAN ($9)  `Is it an inter process drag/drop C_LONGINT ($10) `Area reference number C_BOOLEAN ($0)  `Return value to 4D Agenda C_LONGINT (AGDROP_EVENTID) C_DATE (AGDROP_DATE) C_TIME (AGDROP_TIME) AGDROP_EVENTID := $5 AGDROP_DATE := $6 AGDROP_TIME := $7 $0:=True The method for the 4D Agenda area C_POINTER (SrcObject) C_LONGINT (srcElement) C_LONGINT (srcProcess) C_INTEGER (tableNum) C_INTEGER (fieldNum) C_STRING (32;varName) Case of   : (Form event=On Drop )    DRAG AND DROP PROPERTIES (srcObject ; srcElement ; srcProcess)    RESOLVE POINTER (srcObject ; varName ; tableNum ; fieldNUM)    $Message:="Variable name: "+varName+Char(13)    $Message:=$Message+"Event ID: "+String(AGDROP_EventID)+Char(13)    $Message:=$Message+"Drop date: "+String(AGDROP_DropDate)+Char(13)    $Message:=$Message+"Drop time: "+String(AGDROP_DropTime)+Char(13)         ALERT ($Message) End case