.NET 4.5 update won't work either (on a Windows 7 machine). I receive this message: 
	 
 
	
 
	.....plus, opening the CnCnetclient directly only presents this message:
 
	
 
	 
 
	...I have noticed while reading the other images within the newer support threads of this same issue that the "KABOOOOM" error message claims different file strands are to blame - at least at first, when looking at the reason it failed. 
	ughhhh what a nightmare.