Just hit Win+R and type the one line command in the box, and click OK.
-app103
Sidenote: Disadvantage of that, is that the output isn't visible anymore after the command completes, might you need that.
-Ath
Another sidenote: to run an internal command* like "dir" from Win-R, precede it with cmd /k.
The /k takes care of leaving the cmd window open so you can see if it worked or not, otherwise you can use /c instead.
.
---
* "internal" meaning it is inside cmd.exe vs a separate executable