您好！
对于Windows
Server 2008，在缺省情况下，IPv6协议和IPv4协议都被启用。请尝试禁用IPv6协议，然后在安装一次，检查结果如何。
有关如何禁用IPv6协议，请参考下面的链接中的“How
do I disable IPv6 in Windows Vista and Windows Server 2008?”：
IPv6 for Microsoft Windows: Frequently Asked Questions
http://www.microsoft.com/technet/network/ipv6/ipv6faq.mspx
您在安装Exchange
2007服务器之前有没有运行setup /PrepareSchema或者setup
/PrepareAD、setup /PrepareDomain等命令，这些命令运行的结果如何，有没有成功？
有关如何在Windows
server 2008上安装Exchange 2007
的具体步骤，请参考下面的链接：
如何在
Windows Server 2008 上安装 Exchange 2007 SP1
先决条件
http://technet.microsoft.com/zh-cn/library/bb691354.aspx
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