ERROR: app Not found on the Web Browser Installing OM Web Viewer 12.1 on port 80

Products

• Output Management Web Viewer

Issue/Introduction

When I use port 80 I get an app not found on the web browser. Uninstall reinstall and set the port to 8080 works like a champ.  Tried several times.

Environment

Output Management Web Viewer 12.1

Cause

Port 80 was not available.

Resolution

To see what is listening on port 80:

1. From the cmd prompt box, type
   netstat -ano
   Look for 0.0.0.0:80
   Get PID number from right column
2. Bring up task manager (CTRL/ALT/DEL)
3. Click on the Services tab
4. Click on the PID column to sort, and you will see the name (if any) of the process listening on port 80.

May also need to determine if a port is reserved or blocked by company procedures 

Had to use port 8080