portable text to speech program

is there anyway that PortableApps.com can develop a portable text to speech application, that can support 800 by 600 pixels, uses Microsoft Sam or any installed default voice on the PC, and that can read from the clipboard, when you copy text from Internet Explorer, Mozilla Firefox or Google Chrome by using the copy command or Ctrl+C, it can read it aloud?

I've tried DSpeech, yes it is portable, but useless for my father, who has bad eyesight, who requires a resolution of 800 by 600 pixels, and DSpeech only supports 1024 by 768 pixel and more, which is too small for my father's eyesight.

I've tried using DSpeech on 800 by 600 pixels, but it is useless, because the controls for the program cannot be accessed, and the application windows doesn't compact to fit a resolution of 800 by 600 pixels.

If anyone knows a good free text to speech program, please post it, thank you...