Some install programs are not running
	
	
		Recently, I tried to download and install isobuster.  No matter what version I downloaded, it would not install on my computer.  The cursor would change to the 'busy' cursor, then change back to the cursor.  I checked task manager and saw that the file runs for a split second and then shuts down (disappears).  I am running WinXP (as if you didn't know that by now).
I tried rebooting to safe mode.  The same thing happened.  Just now I downloaded peer guardian and got the same problem.  Help pls.