if(not uses.contain("id = InDesign"))
		sys.add_use('id = InDesign')
		blk_init.println('if (Type.GetTypeFromProgID("InDesign.Application", null, false) == null) {').inc()
		.println('MessageBox.Show("Adobe InDesign is not installed", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);')
		.println('Environment.Exit(1);')
		.dec().println('}')
	end