Does anyone know where I can buy the accessories for this garage system that is now discontinued? It is a 4X4 Slatwall System D and it just taking up wall space since the company is out of business and I don't know where to go.

I don't have a concrete answer for you, but I found your post interesting as I was under the impression that most slatwall systems had compatible accessories as router bits for making "standard" slots (5/16" x 1-1/16" with 3/8" groove) are available. I just bought a bunch of panels at auction and was considering Sam's Club - SlatWall Hooks Set - 35 pc. or Spacewall International: Slatwall Chrome Brackets. Now you've got me wondering. Have you measured your slot dimensions and compared with other systems?