DoCmd.Restore

Minimise the active window.

Syntax
      DoCmd.Restore

Assuming the default menus are available, use the window menu to switch between forms/windows.

Example

DoCmd.Minimise

“The blush of dawn may yet restore, Our light and hope and joy once more” ~ Celia Thaxter

Related:

Maximize - Enlarge the active window
Minimize - Minimise a window