Crazylemons's ntnet downloader suggestion.

code/modules/modular_computers/file_system/program.dm

@@ -138,6 +138,7 @@
 // Use this proc to kill the program. Designed to be implemented by each program if it requires on-quit logic, such as the NTNRC client.
 /datum/computer_file/program/proc/kill_program(forced = FALSE)
 	program_state = PROGRAM_STATE_KILLED
+	computer.update_icon()
 	if(network_destination)
 		generate_network_log("Connection to [network_destination] closed.")
 	return 1

code/modules/modular_computers/file_system/programs/generic/ntdownloader.dm

@@ -144,7 +144,8 @@
 			"filedesc" = P.filedesc,
 			"fileinfo" = P.extended_desc,
 			"compatibility" = check_compatibility(P),
-			"size" = P.size
+			"size" = P.size,
+			"status" = !hard_drive || !hard_drive.can_store_file(P) ? "disabled" : null
 			)))
 		data["hackedavailable"] = 0
 		if(computer.emagged) // If we are running on emagged computer we have access to some "bonus" software