最近忙著做專案，自己電腦上自從安裝了VS2010之後都沒怎麼用，確實很好用，不過經常會出一些怪異的問題，比如拷貝不起作用等。剛剛看到VS210 SP1釋出，迫不及待的就下載了，各位用VS開發的程式設計師朋友，快去下載試試吧。

本次釋出的SP1包含了下列語言：英文，簡體中文，繁體中文，法語，德語，印度語，日語，韓語，俄語以及西班牙語。

Visual Studio 2010 SP1 採用了新的幫助檢視器，新增了對Silverlight 4工具的支援，IntelliTrace支援64位和SharePoint，增加了VS2010的線上幫助，添加了大量Windows 7專用MFC APIs，以便支援Direct2D、DirectWrite和Windows Animation動畫技術。此外，VS2010 SP1還有比如：支援.NET 3.5下的單元測試（unit test）、VB Compiler執行時(runtime)的switch等新特性……

MSDN對於本次更新的說明：

Visual Studio 2010 Service Pack 1 and Windows SDK for Windows 7 and .NET Framework 4 Issue

Microsoft has identified an issue for users of the stand-alone Microsoft Windows SDK for Windows 7 and .NET Framework 4. Currently there is no workaround to enable installation of the Visual Studio 2010 Service Pack 1 for these users.

We recommend that users of the Windows SDK do not install Visual Studio 2010 Service Pack 1 at this time. We are currently working on an update to fix this issue and will update this page when it becomes available.

Issue

If you have downloaded and installed the stand-alone “Microsoft Windows SDK for Windows 7 and .NET Framework 4 (Windows SDK v7.1)” and you are using the x64 or IA64 compilers that were included in that download, you may find that these compilers and the associated Visual C++ library files removed. The impact may be as indicated below:

• If Visual Studio 2010 Professional is installed, then the IA64 compiler and Visual C++ libraries are removed.
• If Visual Studio 2010 Express (any edition) is installed, then the x64 and IA64 compilers and Visual C++ libraries are removed.
• Visual Studio 2010 Premium and Visual Studio 2010 Ultimate are unaffected.

Error Message

If you have installed Visual Studio 2010 Service Pack 1 and experience this issue you may receive either of the following errors when using the Windows SDK v7.1 compilers to target the x64 or IA64 architecture:

“The X64 compilers are not currently installed. Please go to Add/Remove Programs to update your installation.”

OR

“The IA64 compilers are not currently installed. Please go to Add/Remove Programs to update your installation.”

Mitigation

We are working on an update to the Windows SDK that will resolve the issue described above. If you have already installed Visual Studio 2010 Service Pack 1 and are experiencing this issue then you will need to remove the Service Pack and repair the Windows SDK installation as detailed below:

1. Uninstall Visual Studio 2010 Service Pack 1
2. Run the following from the command line to ensure that all related files have been removed from the system. Note: if you receive the error “This action is only valid for products that are currently installed.” you can safely ignore the error, because the files have already been removed.
   1. On all systems, run the following from the command line:
      msiexec /x {2F8B731A-5F2D-3EA8-8B25-C3E5E43F4BDB}
   2. If on an x64 system, run this additional command from the command line:
      msiexec /x {81455DEB-FC7E-3EE5-85CA-2EBDD9FD61EB}
   3. If on an IA64 system, run this additional command from the command line:
      msiexec /x {AC917391-EEBA-3240-81FF-1E9EC0D49403}
3. Repair Windows SDK v7.1

注意：此處提供的SP1僅為升級補丁，你需要先安裝VS2010原版，這裡下載VS2010原版。另外，如果你是之前沒有安裝過SP1 Beta版補丁的話，那麼下載後直接安裝即可。如果你已經安裝了Visual Studio 2010 SP1 Beta版，那麼需要先將其解除安裝，然後才能安裝SP1。

值得注意的是，如果之前曾經安裝過“Microsoft Windows SDK for Windows 7 and .NET Framework 4 (Windows SDK v7.1)”並且使用了其中的x64或IA64編譯器，那麼安裝SP1可能會出現問題，具體解決方法請檢視上面MSDN的說明。

微軟提供了Visual Studio 2010 SP1的Web安裝程式和 ISO兩個版本，前者幾百K，但要線上下載很久，後者1.5GB，可以離線安裝，SP1適用於Visual Studio 2010的所有版本（學習版、專業版、高階專業版、旗艦版、專業測試工具版），它將對已安裝的Visual Studio 2010的所有版本和語言進行升級。