YES I will use it to start, I don't know what IF is the best to use.I don't want to have a macro running in a loop

I will like to look to a file in a folder, when that file is on the folder I want to check if a specific macro is running on Macro Scheduler. If the macro is running do nothing but if is not running start the macro Can someone gave me a hint to make this possible. I want to verify if a macro iand is...