The error that you are getting is telling you that KixForms is not installed on that machine.

Code:

Function CheckDLL()
	
	;*************************************************
	;** Check that KIXFORMS.DLL is registered and   **
	;**          copy and register if not           **
	;*************************************************
	
	$ReturnCode = KeyExist("HKEY_CLASSES_ROOT\KixTart.Form\CLSID")
	
	If  $ReturnCode = 0				;** KixForms not registered
														;** Copy .DLL
		$SourceFile = @LServer + "\netlogon\kixforms.dll"
		$Value = ReadValue( "HKLM\System\CurrentControlset\Control\Windows", "SystemDirectory") 
		$Destination = ExpandEnvironmentVars( $Value ) 
		Copy $SourceFile $Destination
														;** Register .DLL silently
		$CMDLine = "regsvr32 /s " + $Destination + "\kixforms.dll"
		$ObjShell = CreateObject("WScript.Shell")
		$ObjShell.run($CMDLine, 1, true)
														;** Kill shell object
		$ObjShell = nothing
	EndIf
	;** Wait for registration to take effect
	Sleep 2
	
EndFunction

This will try to install the KiXForms DLL for you, but if you do not have it located in this specified locations
Quote:

$SourceFile = @LServer + "\netlogon\kixforms.dll"

It will not be able to install it for you.