set basePath to (do shell script "echo ~") & "/" & "Library/Application Scripts/com.devon-technologies.think/Menu/Belegversand"
set helperScript to basePath & "/Helpers/show_about.scpt"

try
	set loadedScript to load script (POSIX file helperScript as alias)
	run loadedScript
	tell loadedScript to showAboutDialog()
on error errMsg
	display dialog "Fehler: " & errMsg buttons {"OK"}
end try