<div>
yes<br />
exchange 2007 SP3 with RU13 will support a 2003 through 2012 R2 AD environment<br />
<br />
<i><u>Exchange Server Supportability Matrix</u></i><br />
<a href="https://technet.microsoft.com/en-us/library/ff728623%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396" rel="ugc">https://technet.microsoft.com/en-us/library/ff728623%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396</a>
</div>


yes
exchange 2007 SP3 with RU13 will support a 2003 through 2012 R2 AD environment

Exchange Server Supportability Matrix
https://technet.microsoft.com/en-us/library/ff728623%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396 [https://technet.microsoft.com/en-us/library/ff728623%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396]

<div>
<div class="content wysiwyg-content">
I have a Exchange 2007 &nbsp;Windows 2003 server. &nbsp;My network is currently Windows 2003 active directory. When I install a new Windows 2008 active directory, will the Exchange 2007 on Windows 2003 server still run?
</div>
</div>


I have a Exchange 2007  Windows 2003 server.  My network is currently Windows 2003 active directory. When I install a new Windows 2008 active directory, will the Exchange 2007 on Windows 2003 server still run?

Exchange 2007 on Windows 2003 Active Directory

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.