java 6 update 22

If I have asked this question before, my appologies

 

I had installed Java 6 update 22 back  on 10/14/10

 

I notice that in

C:\Windows\System32  I have the following items

 

java.exe

javaw.exe

javaws.exe

 

all are digitally signed and all show installation at the same time that I installed java 6 update 22

I scanned these items in system 32 and all are clean

 

These same items are also showing in

C:\ProgramFiles\Java\JRE6\bin

 

 

is it normal to also have these items in C:\System32   ?

 

I use Visat Home premium 32 bit with Vista SP2