Microsoft .Net Framework 3.5 安装错误

Microsoft .Net Framework 3.5 安装需联网下载约 44MB 文件，放在C:/Documents and Settings/Administrator/Local Settings/Temp文件夹中，但出错了不好办。

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dd_dotnetfx35error.txt

[05/20/08,15:24:38] Microsoft .NET Framework 3.0a: [2] Error: Installation failed for component Microsoft .NET Framework 3.0a. MSI returned error code 1603
[05/20/08,16:05:40] Microsoft .NET Framework 3.0a: [2] Error: Installation failed for component Microsoft .NET Framework 3.0a. MSI returned error code 1603
[05/20/08,16:06:11] Microsoft .NET Framework 3.5 'package': [2] Error: No valid install package found for component Microsoft .NET Framework 3.5 'package'
[05/20/08,16:06:12] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147467259.
[05/20/08,16:06:13] Microsoft .NET Framework 3.0a: [2] Error: Install package not found in map: d:/bedfe8611b9e795199bb8a5950048b/wcu/dotNetFramework/dotnetfx30/WCF.msp
[05/20/08,16:06:13] Microsoft .NET Framework 3.0a: [2] Error: No valid install package found for component Microsoft .NET Framework 3.0a
[05/20/08,16:06:13] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147467259.
[05/20/08,16:06:19] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.0a is not installed.
[05/20/08,16:06:20] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5 'package' is not installed.
[05/20/08,16:19:28] Microsoft .NET Framework 3.0a: [2] Error: Installation failed for component Microsoft .NET Framework 3.0a. MSI returned error code 1603
[05/20/08,16:20:10] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.0a is not installed.