this-is-me

Nevermind me. Just not enough sleep.

Now, bear in mind that this code does EXACTLY what I wanted, which is to have a one-way communication mechanism between a master script and multiple children scripts. To that end, these scripts have been modified as necessary. It can be modified to perform two-way communication, but I will leave that to the reader.

First, we have NomadMemory.au3, modified for compatibility with the latest version of AutoIt and 64-bit compatibility as described >here.
NomadMemory.au3
#include-once #include <SecurityConstants.au3> #region _Memory ;================================================================================== ; AutoIt Version: 3.1.127 (beta) ; Language: English ; Platform: All Windows ; Author: Nomad ; Requirements: These functions will only work with beta. ;================================================================================== ; Credits: wOuter - These functions are based on his original _Mem() functions. ; But they are easier to comprehend and more reliable. These ; functions are in no way a direct copy of his functions. His ; functions only provided a foundation from which these evolved. ;================================================================================== ; ; Functions: ; ;================================================================================== ; Function: _MemoryOpen($iv_Pid[, $iv_DesiredAccess[, $iv_InheritHandle]]) ; Description: Opens a process and enables all possible access rights to the ; process. The Process ID of the process is used to specify which ; process to open. You must call this function before calling ; _MemoryClose(), _MemoryRead(), or _MemoryWrite(). ; Parameter(s): $iv_Pid - The Process ID of the program you want to open. ; $iv_DesiredAccess - (optional) Set to 0x1F0FFF by default, which ; enables all possible access rights to the ; process specified by the Process ID. ; $iv_InheritHandle - (optional) If this value is TRUE, all processes ; created by this process will inherit the access ; handle. Set to 1 (TRUE) by default. Set to 0 ; if you want it FALSE. ; Requirement(s): None. ; Return Value(s): On Success - Returns an array containing the Dll handle and an ; open handle to the specified process. ; On Failure - Returns 0 ; @Error - 0 = No error. ; 1 = Invalid $iv_Pid. ; 2 = Failed to open Kernel32.dll. ; 3 = Failed to open the specified process. ; Author(s): Nomad ; Note(s): ;================================================================================== Func _MemoryOpen($iv_Pid, $iv_DesiredAccess = 0x1F0FFF, $iv_InheritHandle = 1) If Not ProcessExists($iv_Pid) Then SetError(1) Return 0 EndIf Local $ah_Handle[2] = [DllOpen('kernel32.dll')] If @Error Then SetError(2) Return 0 EndIf Local $av_OpenProcess = DllCall($ah_Handle[0], 'int', 'OpenProcess', 'int', $iv_DesiredAccess, 'int', $iv_InheritHandle, 'int', $iv_Pid) If @Error Then DllClose($ah_Handle[0]) SetError(3) Return 0 EndIf $ah_Handle[1] = $av_OpenProcess[0] Return $ah_Handle EndFunc ;================================================================================== ; Function: _MemoryRead($iv_Address, $ah_Handle[, $sv_Type]) ; Description: Reads the value located in the memory address specified. ; Parameter(s): $iv_Address - The memory address you want to read from. It must ; be in hex format (0x00000000). ; $ah_Handle - An array containing the Dll handle and the handle ; of the open process as returned by _MemoryOpen(). ; $sv_Type - (optional) The "Type" of value you intend to read. ; This is set to 'dword'(32bit(4byte) signed integer) ; by default. See the help file for DllStructCreate ; for all types. An example: If you want to read a ; word that is 15 characters in length, you would use ; 'char[16]' since a 'char' is 8 bits (1 byte) in size. ; Return Value(s): On Success - Returns the value located at the specified address. ; On Failure - Returns 0 ; @Error - 0 = No error. ; 1 = Invalid $ah_Handle. ; 2 = $sv_Type was not a string. ; 3 = $sv_Type is an unknown data type. ; 4 = Failed to allocate the memory needed for the DllStructure. ; 5 = Error allocating memory for $sv_Type. ; 6 = Failed to read from the specified process. ; Author(s): Nomad ; Note(s): Values returned are in Decimal format, unless specified as a ; 'char' type, then they are returned in ASCII format. Also note ; that size ('char[size]') for all 'char' types should be 1 ; greater than the actual size. ;================================================================================== Func _MemoryRead($iv_Address, $ah_Handle, $sv_Type = 'dword') If Not IsArray($ah_Handle) Then SetError(1) Return 0 EndIf Local $v_Buffer = DllStructCreate($sv_Type) If @Error Then SetError(@Error + 1) Return 0 EndIf DllCall($ah_Handle[0], 'int', 'ReadProcessMemory', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer), 'int', '') If Not @Error Then Local $v_Value = DllStructGetData($v_Buffer, 1) Return $v_Value Else SetError(6) Return 0 EndIf EndFunc Func _NewMemRead($Addr1, $Proc1, $type1) If $type1 = "int" Then ;I only used int, if you use uint or any other integer representation, add them in here Return (Dec(Hex(StringRegExpReplace(_MemoryRead($Addr1, $Proc1, $type1), "00000000", "", 1)))) Else Return _MemoryRead($Addr1, $Proc1, $type1) EndIf EndFunc ;==>_NewMemRead ;================================================================================== ; Function: _MemoryWrite($iv_Address, $ah_Handle, $v_Data[, $sv_Type]) ; Description: Writes data to the specified memory address. ; Parameter(s): $iv_Address - The memory address which you want to write to. ; It must be in hex format (0x00000000). ; $ah_Handle - An array containing the Dll handle and the handle ; of the open process as returned by _MemoryOpen(). ; $v_Data - The data to be written. ; $sv_Type - (optional) The "Type" of value you intend to write. ; This is set to 'dword'(32bit(4byte) signed integer) ; by default. See the help file for DllStructCreate ; for all types. An example: If you want to write a ; word that is 15 characters in length, you would use ; 'char[16]' since a 'char' is 8 bits (1 byte) in size. ; Return Value(s): On Success - Returns 1 ; On Failure - Returns 0 ; @Error - 0 = No error. ; 1 = Invalid $ah_Handle. ; 2 = $sv_Type was not a string. ; 3 = $sv_Type is an unknown data type. ; 4 = Failed to allocate the memory needed for the DllStructure. ; 5 = Error allocating memory for $sv_Type. ; 6 = $v_Data is not in the proper format to be used with the ; "Type" selected for $sv_Type, or it is out of range. ; 7 = Failed to write to the specified process. ; Author(s): Nomad ; Note(s): Values sent must be in Decimal format, unless specified as a ; 'char' type, then they must be in ASCII format. Also note ; that size ('char[size]') for all 'char' types should be 1 ; greater than the actual size. ;================================================================================== Func _MemoryWrite($iv_Address, $ah_Handle, $v_Data, $sv_Type = 'dword') If Not IsArray($ah_Handle) Then SetError(1) Return 0 EndIf Local $v_Buffer = DllStructCreate($sv_Type) If @Error Then SetError(@Error + 1) Return 0 Else DllStructSetData($v_Buffer, 1, $v_Data) If @Error Then SetError(6) Return 0 EndIf EndIf DllCall($ah_Handle[0], 'int', 'WriteProcessMemory', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer), 'int', '') If Not @Error Then Return 1 Else SetError(7) Return 0 EndIf EndFunc ;================================================================================== ; Function: _MemoryClose($ah_Handle) ; Description: Closes the process handle opened by using _MemoryOpen(). ; Parameter(s): $ah_Handle - An array containing the Dll handle and the handle ; of the open process as returned by _MemoryOpen(). ; Return Value(s): On Success - Returns 1 ; On Failure - Returns 0 ; @Error - 0 = No error. ; 1 = Invalid $ah_Handle. ; 2 = Unable to close the process handle. ; Author(s): Nomad ; Note(s): ;================================================================================== Func _MemoryClose($ah_Handle) If Not IsArray($ah_Handle) Then SetError(1) Return 0 EndIf DllCall($ah_Handle[0], 'int', 'CloseHandle', 'int', $ah_Handle[1]) If Not @Error Then DllClose($ah_Handle[0]) Return 1 Else DllClose($ah_Handle[0]) SetError(2) Return 0 EndIf EndFunc ;================================================================================== ; Function: SetPrivilege( $privilege, $bEnable ) ; Description: Enables (or disables) the $privilege on the current process ; (Probably) requires administrator privileges to run ; ; Author(s): Larry (from autoitscript.com's Forum) ; Notes(s): ; http://www.autoitscript.com/forum/index.ph...st&p=223999 ;================================================================================== Func SetPrivilege( $privilege, $bEnable ) ;Const $TOKEN_ADJUST_PRIVILEGES = 0x0020 ;Const $TOKEN_QUERY = 0x0008 ;Const $SE_PRIVILEGE_ENABLED = 0x0002 Local $hToken, $SP_auxret, $SP_ret, $hCurrProcess, $nTokens, $nTokenIndex, $priv $nTokens = 1 $LUID = DLLStructCreate("dword;int") If IsArray($privilege) Then $nTokens = UBound($privilege) $TOKEN_PRIVILEGES = DLLStructCreate("dword;dword[" & (3 * $nTokens) & "]") $NEWTOKEN_PRIVILEGES = DLLStructCreate("dword;dword[" & (3 * $nTokens) & "]") $hCurrProcess = DLLCall("kernel32.dll","hwnd","GetCurrentProcess") $SP_auxret = DLLCall("advapi32.dll","int","OpenProcessToken","hwnd",$hCurrProcess[0], _ "int",BitOR($TOKEN_ADJUST_PRIVILEGES,$TOKEN_QUERY),"int*",0) If $SP_auxret[0] Then $hToken = $SP_auxret[3] DLLStructSetData($TOKEN_PRIVILEGES,1,1) $nTokenIndex = 1 While $nTokenIndex <= $nTokens If IsArray($privilege) Then $priv = $privilege[$nTokenIndex-1] Else $priv = $privilege EndIf $ret = DLLCall("advapi32.dll","int","LookupPrivilegeValue","str","","str",$priv, _ "ptr",DLLStructGetPtr($LUID)) If $ret[0] Then If $bEnable Then DLLStructSetData($TOKEN_PRIVILEGES,2,$SE_PRIVILEGE_ENABLED,(3 * $nTokenIndex)) Else DLLStructSetData($TOKEN_PRIVILEGES,2,0,(3 * $nTokenIndex)) EndIf DLLStructSetData($TOKEN_PRIVILEGES,2,DllStructGetData($LUID,1),(3 * ($nTokenIndex-1)) + 1) DLLStructSetData($TOKEN_PRIVILEGES,2,DllStructGetData($LUID,2),(3 * ($nTokenIndex-1)) + 2) DLLStructSetData($LUID,1,0) DLLStructSetData($LUID,2,0) EndIf $nTokenIndex += 1 WEnd $ret = DLLCall("advapi32.dll","int","AdjustTokenPrivileges","hwnd",$hToken,"int",0, _ "ptr",DllStructGetPtr($TOKEN_PRIVILEGES),"int",DllStructGetSize($NEWTOKEN_PRIVILEGES), _ "ptr",DllStructGetPtr($NEWTOKEN_PRIVILEGES),"int*",0) $f = DLLCall("kernel32.dll","int","GetLastError") EndIf $NEWTOKEN_PRIVILEGES=0 $TOKEN_PRIVILEGES=0 $LUID=0 If $SP_auxret[0] = 0 Then Return 0 $SP_auxret = DLLCall("kernel32.dll","int","CloseHandle","hwnd",$hToken) If Not $ret[0] And Not $SP_auxret[0] Then Return 0 return $ret[0] EndFunc ;==>SetPrivilege ;================================================================================================= ; Function: _MemoryPointerRead ($iv_Address, $ah_Handle, $av_Offset[, $sv_Type]) ; Description: Reads a chain of pointers and returns an array containing the destination ; address and the data at the address. ; Parameter(s): $iv_Address - The static memory address you want to start at. It must be in ; hex format (0x00000000). ; $ah_Handle - An array containing the Dll handle and the handle of the open ; process as returned by _MemoryOpen(). ; $av_Offset - An array of offsets for the pointers. Each pointer must have an ; offset. If there is no offset for a pointer, enter 0 for that ; array dimension. ; $sv_Type - (optional) The "Type" of data you intend to read at the destination ; address. This is set to 'dword'(32bit(4byte) signed integer) by ; default. See the help file for DllStructCreate for all types. ; Requirement(s): The $ah_Handle returned from _MemoryOpen. ; Return Value(s): On Success - Returns an array containing the destination address and the value ; located at the address. ; On Failure - Returns 0 ; @Error - 0 = No error. ; 1 = $av_Offset is not an array. ; 2 = Invalid $ah_Handle. ; 3 = $sv_Type is not a string. ; 4 = $sv_Type is an unknown data type. ; 5 = Failed to allocate the memory needed for the DllStructure. ; 6 = Error allocating memory for $sv_Type. ; 7 = Failed to read from the specified process. ; Author(s): Nomad ; Note(s): Values returned are in Decimal format, unless a 'char' type is selected. ; Set $av_Offset like this: ; $av_Offset[0] = NULL (not used) ; $av_Offset[1] = Offset for pointer 1 (all offsets must be in Decimal) ; $av_Offset[2] = Offset for pointer 2 ; etc... ; (The number of array dimensions determines the number of pointers) ;================================================================================================= Func _MemoryPointerRead($iv_Address, $ah_Handle, $av_Offset, $sv_Type = 'dword') If IsArray($av_Offset) Then If IsArray($ah_Handle) Then Local $iv_PointerCount = UBound($av_Offset) - 1 Else SetError(2) Return 0 EndIf Else SetError(1) Return 0 EndIf Local $iv_Data[2], $i Local $v_Buffer = DllStructCreate('dword') For $i = 0 To $iv_PointerCount If $i = $iv_PointerCount Then $v_Buffer = DllStructCreate($sv_Type) If @error Then SetError(@error + 2) Return 0 EndIf $iv_Address = '0x' & Hex($iv_Data[1] + $av_Offset[$i]) DllCall($ah_Handle[0], 'int', 'ReadProcessMemory', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer), 'int', '') If @error Then SetError(7) Return 0 EndIf $iv_Data[1] = DllStructGetData($v_Buffer, 1) ElseIf $i = 0 Then DllCall($ah_Handle[0], 'int', 'ReadProcessMemory', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer), 'int', '') If @error Then SetError(7) Return 0 EndIf $iv_Data[1] = DllStructGetData($v_Buffer, 1) Else $iv_Address = '0x' & Hex($iv_Data[1] + $av_Offset[$i]) DllCall($ah_Handle[0], 'int', 'ReadProcessMemory', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer), 'int', '') If @error Then SetError(7) Return 0 EndIf $iv_Data[1] = DllStructGetData($v_Buffer, 1) EndIf Next $iv_Data[0] = $iv_Address Return $iv_Data EndFunc ;==>_MemoryPointerRead ;================================================================================================= ; Function: _MemoryPointerWrite ($iv_Address, $ah_Handle, $av_Offset, $v_Data[, $sv_Type]) ; Description: Reads a chain of pointers and writes the data to the destination address. ; Parameter(s): $iv_Address - The static memory address you want to start at. It must be in ; hex format (0x00000000). ; $ah_Handle - An array containing the Dll handle and the handle of the open ; process as returned by _MemoryOpen(). ; $av_Offset - An array of offsets for the pointers. Each pointer must have an ; offset. If there is no offset for a pointer, enter 0 for that ; array dimension. ; $v_Data - The data to be written. ; $sv_Type - (optional) The "Type" of data you intend to write at the destination ; address. This is set to 'dword'(32bit(4byte) signed integer) by ; default. See the help file for DllStructCreate for all types. ; Requirement(s): The $ah_Handle returned from _MemoryOpen. ; Return Value(s): On Success - Returns the destination address. ; On Failure - Returns 0. ; @Error - 0 = No error. ; 1 = $av_Offset is not an array. ; 2 = Invalid $ah_Handle. ; 3 = Failed to read from the specified process. ; 4 = $sv_Type is not a string. ; 5 = $sv_Type is an unknown data type. ; 6 = Failed to allocate the memory needed for the DllStructure. ; 7 = Error allocating memory for $sv_Type. ; 8 = $v_Data is not in the proper format to be used with the ; "Type" selected for $sv_Type, or it is out of range. ; 9 = Failed to write to the specified process. ; Author(s): Nomad ; Note(s): Data written is in Decimal format, unless a 'char' type is selected. ; Set $av_Offset like this: ; $av_Offset[0] = NULL (not used, doesn't matter what's entered) ; $av_Offset[1] = Offset for pointer 1 (all offsets must be in Decimal) ; $av_Offset[2] = Offset for pointer 2 ; etc... ; (The number of array dimensions determines the number of pointers) ;================================================================================================= Func _MemoryPointerWrite ($iv_Address, $ah_Handle, $av_Offset, $v_Data, $sv_Type = 'dword') If IsArray($av_Offset) Then If IsArray($ah_Handle) Then Local $iv_PointerCount = UBound($av_Offset) - 1 Else SetError(2) Return 0 EndIf Else SetError(1) Return 0 EndIf Local $iv_StructData, $i Local $v_Buffer = DllStructCreate('dword') For $i = 0 to $iv_PointerCount If $i = $iv_PointerCount Then $v_Buffer = DllStructCreate($sv_Type) If @Error Then SetError(@Error + 3) Return 0 EndIf DllStructSetData($v_Buffer, 1, $v_Data) If @Error Then SetError(8) Return 0 EndIf $iv_Address = '0x' & hex($iv_StructData + $av_Offset[$i]) DllCall($ah_Handle[0], 'int', 'WriteProcessMemory', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer), 'int', '') If @Error Then SetError(9) Return 0 Else Return $iv_Address EndIf ElseIf $i = 0 Then DllCall($ah_Handle[0], 'int', 'ReadProcessMemory', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer), 'int', '') If @Error Then SetError(3) Return 0 EndIf $iv_StructData = DllStructGetData($v_Buffer, 1) Else $iv_Address = '0x' & hex($iv_StructData + $av_Offset[$i]) DllCall($ah_Handle[0], 'int', 'ReadProcessMemory', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer), 'int', '') If @Error Then SetError(3) Return 0 EndIf $iv_StructData = DllStructGetData($v_Buffer, 1) EndIf Next EndFunc ;=================================================================================================== ; Function........: _MemoryGetBaseAddress($ah_Handle, $iHD) ; ; Description.....: Reads the 'Allocation Base' from the open process. ; ; Parameter(s)....: $ah_Handle - An array containing the Dll handle and the handle of the open ; process as returned by _MemoryOpen(). ; $iHD - Return type: ; |0 = Hex (Default) ; |1 = Dec ; ; Requirement(s)..: A valid process ID. ; ; Return Value(s).: On Success - Returns the 'allocation Base' address and sets @Error to 0. ; On Failure - Returns 0 and sets @Error to: ; |1 = Invalid $ah_Handle. ; |2 = Failed to find correct allocation address. ; |3 = Failed to read from the specified process. ; ; Author(s).......: Nomad. Szhlopp. ; URL.............: http://www.autoitscript.com/forum/index.php?showtopic=78834 ; Note(s).........: Go to Www.CheatEngine.org for the latest version of CheatEngine. ;=================================================================================================== Func _MemoryGetBaseAddress($ah_Handle, $iHexDec = 0) Local $iv_Address = 0x00100000 Local $v_Buffer = DllStructCreate('dword;dword;dword;dword;dword;dword;dword') Local $vData Local $vType If Not IsArray($ah_Handle) Then SetError(1) Return 0 EndIf DllCall($ah_Handle[0], 'int', 'VirtualQueryEx', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer)) If Not @Error Then $vData = Hex(DllStructGetData($v_Buffer, 2)) $vType = Hex(DllStructGetData($v_Buffer, 3)) While $vType <> "00000080" DllCall($ah_Handle[0], 'int', 'VirtualQueryEx', 'int', $ah_Handle[1], 'int', $iv_Address, 'ptr', DllStructGetPtr($v_Buffer), 'int', DllStructGetSize($v_Buffer)) $vData = Hex(DllStructGetData($v_Buffer, 2)) $vType = Hex(DllStructGetData($v_Buffer, 3)) If Hex($iv_Address) = "01000000" Then ExitLoop $iv_Address += 65536 WEnd If $vType = "00000080" Then SetError(0) If $iHexDec = 1 Then Return Dec($vData) Else Return $vData EndIf Else SetError(2) Return 0 EndIf Else SetError(3) Return 0 EndIf EndFunc ;==>_MemoryGetBaseAddress #EndRegion Second, we have a little UDF I put together for my purposes.
IPCLib.au3
#include <WinAPI.au3> #include <WindowsConstants.au3> #include <APISysConstants.au3> #include <NomadMemory.au3> Global $IPC_MNum, $IPC_Func Func IPC_Register($ipcname = Default, $type = "Server", $function = "") If $ipcname = Default Then $ipcname = "IPC_Default_Name" If $type = "Client" Then GUICreate("") ;We have to have a "top-level" window for HWND_BROADCAST to work. $IPC_MNum = _WinAPI_RegisterWindowMessage($ipcname) Switch $type Case "Server" IPC_Notify() AdlibRegister("IPC_Notify", 3000) ;Register with children every 3 seconds Case "Client" $IPC_Func = $function GUIRegisterMsg($IPC_MNum, "IPC_GetInfo") EndSwitch EndFunc Func IPC_Broadcast($sOut) ;put the string in a struct Local Static $IPC_Temp = DllStructCreate('char[' & StringLen($sOut) + 1 & ']') DllStructSetData($IPC_Temp, 1, $sOut) ;create another struct for the address of the first struct and the length of the string Local Static $IPC_MsgStruct = DllStructCreate("int;int") DllStructSetData($IPC_MsgStruct, 1, DllStructGetPtr($IPC_Temp)) DllStructSetData($IPC_MsgStruct, 2, StringLen($sOut) + 1) _WinAPI_PostMessage($HWND_BROADCAST, $IPC_MNum, 2, DllStructGetPtr($IPC_MsgStruct)) EndFunc ;==>IPC_Broadcast Func IPC_Notify() _WinAPI_PostMessage($HWND_BROADCAST, $IPC_MNum, 1, @AutoItPID) EndFunc Func IPC_GetInfo($hWnd, $MsgID, $Wparam, $LParam) Local $DataAdd, $DataLen, $Data, $hMem Local Static $IPC_PID Switch $Wparam Case 1 ;we're being told the PID $IPC_PID = Number($LParam) Case 2 ;$LParam is the address of the struct If $IPC_PID = "" Then Return $hMem = _MemoryOpen($IPC_PID) ;$LParam is the address of the struct $DataAdd = _NewMemRead($LParam, $hMem, "int") $DataLen = _NewMemRead(IPC_AddrCalc($LParam, 4), $hMem, "int") $Data = _NewMemRead(IPC_AddrCalc($DataAdd, 0), $hMem, "char[" & $DataLen & "]") $IPC_Func($Data) EndSwitch EndFunc ;==>IPC_GetInfo Func IPC_AddrCalc($StartAddr, $Offset) Return '0x' & Hex(Number($StartAddr) + $Offset, 8) EndFunc ;==>IPC_AddrCalc  And, finally we have example scripts. First is Receive.au3. Run this one first. You may have as many copies of this script running as necessary.

Receive.au3
#include <IPCLib.au3> IPC_Register(Default, "Client", Alert) ;Register as a client, sending received messages to the alert function While 1 Sleep(1000) WEnd Func Alert($str) MsgBox(0,"",$str) EndFunc And Finally, the "Server" or sending part. In practice, you can IPC_Broadcast($Messages) as often as you like, and all the children scripts will respond as necessary.

Send.au3
#include <IPCLib.au3> IPC_Register() ;Register as a Server, AKA Sender. IPC_Broadcast("Hello to another script") While 1 Sleep(1000) WEnd Credits for all this goes to martin, cooleko, Nomad and Melba23.

I have simply modified the scripts for my usages. I did, however, notice and fix a bug along the way. The IPC_Broadcast function was a modified version of martin's SendString function. In his function, the dll structures were local to the function, and therefore temporary. As soon as SendString exited, the structures were destroyed. This is fine with SendMessage, since this function appears to wait until the message is received. However, when used with PostMessage and HWND_BROADCAST (which does not appear to wait), the function destroyed the dll structures before the children scripts were able to access them. Therefore, I simply made those structures Global. Thanks to JohnOne, I have modified the script to use Local Static for the Dll Structures, which allows those structures to remain in memory until the function is called again.