我需要部署一个需要.net 4.5的asp net mvc应用程序我正在尝试安装 .NET 4.0，但在该过程结束时出现致命错误：
这是日志：
OS Version = 6.0.6001, Platform 2, Service Pack 1
OS Description = Win2K8 - x86 Datacenter Edition Service Pack 1
CommandLine = H:3b4bd74090bffcb407705182\Setup.exe /x86 /x64 /ia64 /web
TimeZone = E. South America Daylight Time
Initial LCID = 1046
Using Simultaneous Download and Install mechanism
Operation: Installing
Package Name = Microsoft .NET Framework 4 Setup
Package Version = 4.0.30319
User Experience Data Collection Policy: Disabled
Number of applicable items: 11
Exe (H:3b4bd74090bffcb407705182SetupUtility.exe) succeeded.
Exe Log File: dd_SetupUtility.txt
ServiceControl operation succeeded!
Exe (C:UsersADMINI~1AppDataLocalTemp1Microsoft .NET Framework 4 Setup_4.0.30319Windows6.0-KB956250-v6001-x86.msu) failed with 0x1 - Incorrect function. .
Exe (H:3b4bd74090bffcb407705182SetupUtility.exe) succeeded.
Exe Log File: dd_SetupUtility.txt
MSI (C:UsersADMINI~1AppDataLocalTemp1Microsoft .NET Framework 4 Setup_4.0.30319netfx_Core_x86.msi) Installation succeeded. Msi Log: Microsoft .NET Framework 4 Setup_20121209_003156019-MSI_netfx_Core_x86.msi.txt
MSI (C:UsersADMINI~1AppDataLocalTemp1Microsoft .NET Framework 4 Setup_4.0.30319netfx_Extended_x86.msi) Installation succeeded. Msi Log: Microsoft .NET Framework 4 Setup_20121209_003156019-MSI_netfx_Extended_x86.msi.txt
Exe (H:3b4bd74090bffcb407705182SetupUtility.exe) failed with 0x80070643 - Fatal error during installation. .
Final Result: Installation failed with error code: (0x80070643), "Fatal error during installation. " (Elapsed time: 0 00:34:55).
在Windows Server 2008上安装.net 4是否有任何限制？
若要安装 .NET 4.5，应使用独立安装程序，
http://msdn.microsoft.com/en-us/library/5a4x27ek.aspx
如果您确实想要 .NET 4.5，则解决 .NET 4 安装错误是没有意义的。