tony

mrViewer 5.4.1 can't launch on my win10 professional system . no error messages appears. I can see mrviewer application in Task Manager,but it disappers immediatly. when I try to install with "add project to the system path for all user", I get this error message "the pathtoo long installer unable to modify path!". I only can use "donot add project to the system path" installation . I don't know if that cause the problem.