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8/16/2006 6:55:01 AM    Unable to install Exchange Router on SBS2003 SP1
I am trying to install the Exchange Router on a Win2003 SBS machine with SP1 
 
and all the latest Windows Updates.  However, when I get to the end of the 
 
install wizard, I see the following message: 
 
"The  operating system version 5.2 is not supported by the installed product." 
 
The CMD prompt, as well as the output from ver and winver, all show that I 
 
am running version 5.2.3790.  On several forums I've seen people suggest that 
 
version 5.2 is not SP1, but I just reinstalled SP1 again yesterday and it 
 
still says I'm running 5.2.  I also checked a Win2003 Enterprise Edition 
 
server with SP1 that we have installed, and its version is also 5.2. 
 
Any suggestions? 
 
Best regards, 
 
Rob