DOS Games Discussion

I remember an old game that i believe was a DOS game. It was called SAM1. It was 2D and you moved throughout the screen in different rooms and collected different colored keys. The main character had yellow hair and possibly a red shirt. He had a gun and you shoot enemies as you move across the screen/room. Cant find any info on it anywhere, except for an old forum from 2010. There is no comments on the forum thread.

Secret Agent?

Blonde protagonist with red jacket. Not sure about the key collecting.
AKA: Secret Agent Man -> SAM
The executable filename is SAM.exe; the first shareware part could logically be named SAM1.exe