Assign menu shortcut keys without key combinations?

[C# Programming]

I am attempting to emulate a particularly easy to use application I used years ago which utilized standard keyboard letters or numbers without ctrl, Alt or Shift key combinations to control the menu. Thus "RPC" would take you to the "Reports, Profit & Loss, Current Month" submenu item. VS08 will not allow you to assign a standard letter key to a menu item without choosing a modifier key to use in combination.

Is there a way to accomplish this without incorporating a custom keystroke system to invoke the menu?

Thanks for your help.