Pro Trinket Com1 Issue

I am trying to install Pro Trinket 5v. I have the board with Green LED on and Red LED pulsing for upload of Blink program. I get the following error: avrdude: ser_open(): can't open device "\.\COM1": The system cannot find the file specified.

The Trinket is assigned Com1 but no where in my Win7 Device Manager, are ANY Ports showing up.