Hi, I am running a PDC on Server 2008 SP2. I have an existing Exchange 2003 SP2 running in server 2003 SP2. I am trying to install Exchange 2007 on a clean install of Server 2008 but fails at Readiness check. Error: Exchange 2007 cannot be installed on the version of Operating System currently on on your system. I already checked the link below. can someone help please? http://technet.microsoft.com/en-us/library/ff728623.aspx

What version of Exch 2007 setup are you running (RTM, or w/ SP1-3)? What is the OS edition (stand, enterprise, web, datacenter, etc)? Is the OS 64-bit? Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com

Exch 2007 SP1. Both servers (PDC/Exch) are running 64bit Ent Ed.

Any reason you aren't using the latest Exch 2007 install (w/ SP3)? (before we start troubleshooting this install) http://www.microsoft.com/downloads/en/details.aspx?FamilyID=1687160b-634a-43cb-a65a-f355cff0afa6&displaylang=en "Clean installations of Exchange 2007 SP3 on a new server are possible by using this download in the same manner as you would install Exchange 2007 RTM, Exchange 2007 SP1 or Exchange 2007 SP2."Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com

I am sure once you answer Tim's Questions, I am sure your issue will be resolvedGulab | Skype: gulab.mallah

I am sure once you answer Tim's Questions, I am sure your issue will be resolvedGulab | Skype: gulab.mallah

so is this link EXCH2007 w/SP3 ready to install or just SP3 -- REMOVE X from Xname AND Xdomain to reply directly STOP SPAM "TWHarrington" <=?utf-8?B?VFdIYXJyaW5ndG9u?=> wrote in message news:83231b04-9909-46a5-8e08-62247b423a4b... Any reason you aren't using the latest Exch 2007 install (w/ SP3)? (before we start troubleshooting this install) http://www.microsoft.com/downloads/en/details.aspx?FamilyID=1687160b-634a-43cb-a65a-f355cff0afa6&displaylang=en "Clean installations of Exchange 2007 SP3 on a new server are possible by using this download in the same manner as you would install Exchange 2007 RTM, Exchange 2007 SP1 or Exchange 2007 SP2." Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com