Shutdown hangs in Windows 95

I have experience quite some number of Win95 hangs during shutdown at the “Please Wait While Windows is shutting down” screen.

I have search through the net for solution, fortunately i found an easy way to resolve this. Which is,

Create a shortcut icon with this command in it, “rundll.exe user.exe,exitwindows”. Now every time i click on this icon it will shutdown cleanly and fast!

Now, my question is what is this command mean? What i can guess of is it shuts down without waiting other background application to quit. Any impact on this?

I’m glad if there are some ideas/solution other than the command i mentioned.

Please help !
Thank you.