OK. Looks like a problem with paths. But before we get into that, please open C:\Windows\System32 and look for control.exe to be sure it is there. If it is there, click it to see if the Control Panel opens and then continue below. If it is not there, STOP. Let us know.
Right-click My Computer, Properties, Advanced tab, Environment Variables button.
Scroll in the bottom window until you see "PATH" in the left column. Click on it so that it is highlighted and then press the Edit button below.
A new dialog box will pop up. The Variable Value will probably be highlighted. If so, right-click and copy it. If not, highlight the entire string and then right-click and copy it.
Paste the string in your post (or copy if from a different computer).
Just for the heck of it, do the same with the "PATHEXT" variable, please.
One more experiment. Go to Start > Run, and type:
Tell me if anything pops up.