Dowson is currently the manager of National League side Woking, where Tyler works as one of his assistants.
Dowson's relationship with Tyler came to attention ahead of last season's FA Cup tie with Watford, but the two of them go way back to the start of Dowson's coaching career.
"I met him 15 years ago coaching his kid Adam and I asked him if he wanted to get involved, this was back at Walton & Hersham, and he did. He has been my assistant ever since and he is actually a Woking fan. So outside of his work, being in the dugout or the changing room with us is really his dream job and it is great having him around. He misses five or six games a season when he can't make it, but he was at training last night, he will be on the coach on Saturday. Obviously when Champions League is on he cannot miss it but when the game is over he will come straight back and train with us on a Thursday."
Woking are currently ninth in the National League and just three points adrift of the playoffs with half the season still to play.
The club remain part-time despite securing promotion to the England's fifth tier last season, and Dowson said they are still hoping to earn promotion this season.
"I want to get in the playoffs this year," he said.
"You get some people talking about a project, but I haven't done a project since I was at school. What is the point of planning for two years time because two years time never comes."