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Good Afternoon All Let me start by saying... I'm not sure if this belongs in the GUI part of the forum as it's more of a loop / code / dynamic GUI layout issue. I understand if you move it though. I have been doing some crazy things in AutoIT lately and one of them just so happens to be an accidental infinite loop. I am dynamically populating my GUI labels... so that means if I have a users ip address I create $L_PP1_WhoISSearch However, if I assign a function to a non existent label... for instance a user has no ip address or it is invalid, I get an infinite loop / crash. The While loop below just goes crazy running ShellExecute. Since the label $L_PP1_WhoISSearch doesn't exist, the function WhoISSearch() just runs ShellExecute to infinity... What should I do differently??? Is there a trigger I can set in the Gui to ignore missing cases??? Sorry, I can only provide "snippets" of my code since it's for work. Thanks you all!!! ; This is my loop of doom if the $L_PP1_WhoISSearch doesn't exist in my gui. While 1 $nMsg = GUIGetMsg() Switch $nMsg Case $GUI_EVENT_CLOSE Exit Case $L_PP1_DashboardLink DashboardLink01() Case $L_PP1_WhoISSearch WhoISSearch() Case $B_PP1_BACK02 GUIDelete() Gui01_PP_INC() Case $B_PP1_EXIT02 Exit EndSwitch WEnd Func WhoISSearch() ShellExecute('http://whois.arin.net/rest/nets;q=' & $PP1_SourceIPClick01 & '?showDetails=true&showARIN=false&showNonArinTopLevelNet=false') ;MsgBox (0, "", 'WTF') EndFunc; This is my dynamic label for my Gui. ElseIf $i = 5 Then $L_PP1_SourceIP = GUICtrlCreateLabel($LabelVariable & ' ' & $aArray_Variable_PP_Gui01[$i], 10, $L_PP1_Var_StartHeight, 316, 19) GUICtrlSetFont(-1, 10, 800, 0, "Calibri") $L_PP1_Var_StartHeight += 22 $L_PP1_WhoISSearch = GUICtrlCreateLabel('WhoIS Search: ' & $PP1_SourceIPClick01, 10, $L_PP1_Var_StartHeight, 316, 19) GUICtrlSetFont(-1, 10, 800, 0, "Calibri") GUICtrlSetColor(-1, 0x0000FF) $L_PP1_Var_StartHeight += 22