使用NSIS检查.NET4.5+。-Checkfor.NET4.5+withNSIS

23  

Yes there is an official way to check if .NET Framework 4.5 is installed, even if it's not really friendly. From MSDN:

是的，有一个官方的方法来检查。net Framework 4.5是否已经安装，即使它不是很友好。从MSDN:

You can test whether the .NET Framework 4.5 or the .NET Framework 4 is installed by checking the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full subkey in the registry for a DWORD value named Release. The existence of this DWORD indicates that the .NET Framework 4.5 has been installed on that computer. The value of Release is a version number. To determine if the final release version of the .NET Framework 4.5 is installed, check for a value that is equal to or greater than 378389.

您可以通过检查注册中心的HKEY_LOCAL_MACHINE\软件\Microsoft\NET Framework Setup\NDP\v4\ v4\ v4\完整子键来测试.NET Framework 4.5或.NET Framework 4是否已安装。这个DWORD的存在表明。net Framework 4.5已经安装在那台计算机上。发布的值是版本号。要确定是否安装了. net Framework 4.5的最终版本，请检查是否为等于或大于378389的值。

http://msdn.microsoft.com/en-us/library/hh925568.aspx

http://msdn.microsoft.com/en-us/library/hh925568.aspx

It means you first have to check if 4.0 is installed and then to check if there is a value named Release in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full, if so then 4.5 is already installed (I think you can skip the check for a pre-release version).

这意味着您首先要检查是否安装了4.0，然后再检查在HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\ NDP\v4 Full中是否有一个名为Release的值(如果已经安装了的话)(我认为您可以跳过对预发布版本的检查)。

EDIT: check this post here on SO for details about detecting older installed .NET versions and this MSDN article to distinguish between for 4.5.x versions.

编辑:查看这篇文章，以便了解关于检测较早安装的。net版本和MSDN文章以区分4.5版本的细节。x版本。

5  

Here is a function that I wrote that checks for, and downloads if needed, .NET 4.5. In addition, the code also looks for a local copy of the .NET installer - in case you were to put your installer onto a CD or USB drive or something. Supports Silent and Non-Silent installs, as well as setting the Reboot flag. The function is self-contained, but expects you to include LogicLib (which is included with the basic NSIS install).

这是我编写的一个函数，用于检查。net 4.5，如果需要，可以下载。此外，代码还会寻找。net安装程序的本地副本——如果你要把你的安装程序放到CD或USB驱动器或其他东西上的话。支持静默和非静默安装，以及设置重新引导标志。该函数是自包含的，但是期望您包含LogicLib(它包含在基本的NSIS安装中)。

This is the code that I wrote for what will be the installer for my Rachel's Story books.

这是我为《瑞秋的故事》写的代码。

Function CheckAndDownloadDotNet45
# Let's see if the user has the .NET Framework 4.5 installed on their system or not
# Remember: you need Vista SP2 or 7 SP1.  It is built in to Windows 8, and not needed
# In case you're wondering, running this code on Windows 8 will correctly return is_equal
# or is_greater (maybe Microsoft releases .NET 4.5 SP1 for example)

# Set up our Variables
Var /GLOBAL dotNET45IsThere
Var /GLOBAL dotNET_CMD_LINE
Var /GLOBAL EXIT_CODE

ReadRegDWORD $dotNET45IsThere HKLM "SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full" "Release"
IntCmp $dotNET45IsThere 378389 is_equal is_less is_greater

is_equal:
    Goto done_compare_not_needed
is_greater:
    # Useful if, for example, Microsoft releases .NET 4.5 SP1
    # We want to be able to simply skip install since it's not
    # needed on this system
    Goto done_compare_not_needed
is_less:
    Goto done_compare_needed

done_compare_needed:
    #.NET Framework 4.5 install is *NEEDED*

    # Microsoft Download Center EXE:
    # Web Bootstrapper: http://go.microsoft.com/fwlink/?LinkId=225704
    # Full Download: http://go.microsoft.com/fwlink/?LinkId=225702

    # Setup looks for components\dotNET45Full.exe relative to the install EXE location
    # This allows the installer to be placed on a USB stick (for computers without internet connections)
    # If the .NET Framework 4.5 installer is *NOT* found, Setup will connect to Microsoft's website
    # and download it for you

    # Reboot Required with these Exit Codes:
    # 1641 or 3010

    # Command Line Switches:
    # /showrmui /passive /norestart

    # Silent Command Line Switches:
    # /q /norestart


    # Let's see if the user is doing a Silent install or not
    IfSilent is_quiet is_not_quiet

    is_quiet:
        StrCpy $dotNET_CMD_LINE "/q /norestart"
        Goto LookForLocalFile
    is_not_quiet:
        StrCpy $dotNET_CMD_LINE "/showrmui /passive /norestart"
        Goto LookForLocalFile

    LookForLocalFile:
        # Let's see if the user stored the Full Installer
        IfFileExists "$EXEPATH\components\dotNET45Full.exe" do_local_install do_network_install

        do_local_install:
            # .NET Framework found on the local disk.  Use this copy

            ExecWait '"$EXEPATH\components\dotNET45Full.exe" $dotNET_CMD_LINE' $EXIT_CODE
            Goto is_reboot_requested

        # Now, let's Download the .NET
        do_network_install:

            Var /GLOBAL dotNetDidDownload
            NSISdl::download "http://go.microsoft.com/fwlink/?LinkId=225704" "$TEMP\dotNET45Web.exe" $dotNetDidDownload

            StrCmp $dotNetDidDownload success fail
            success:
                ExecWait '"$TEMP\dotNET45Web.exe" $dotNET_CMD_LINE' $EXIT_CODE
                Goto is_reboot_requested

            fail:
                MessageBox MB_OK|MB_ICONEXCLAMATION "Unable to download .NET Framework.  ${PRODUCT_NAME} will be installed, but will not function without the Framework!"
                Goto done_dotNET_function

            # $EXIT_CODE contains the return codes.  1641 and 3010 means a Reboot has been requested
            is_reboot_requested:
                ${If} $EXIT_CODE = 1641
                ${OrIf} $EXIT_CODE = 3010
                    SetRebootFlag true
                ${EndIf}

done_compare_not_needed:
    # Done dotNET Install
    Goto done_dotNET_function

#exit the function
done_dotNET_function:

FunctionEnd

4  

In the end I went with the following function which utilises the answer above. This method first creates a directory "$INSTDIR\dotNETFramework" which contains the .NET web installer:

最后我使用了下面的函数，它利用了上面的答案。此方法首先创建一个目录“$INSTDIR\dotNETFramework”，其中包含.NET web安装程序:

Function CheckAndInstallDotNet
    ; Installer dotNetFx45_Full_setup.exe avalible from http://msdn.microsoft.com/en-us/library/5a4x27ek.aspx
    ; Magic numbers from http://msdn.microsoft.com/en-us/library/ee942965.aspx
    ClearErrors
    ReadRegDWORD $0 HKLM "SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full" "Release"
    IfErrors NotDetected
    ${If} $0 >= 378389
        DetailPrint "Microsoft .NET Framework 4.5 is installed ($0)"
    ${Else}
    NotDetected:
        MessageBox MB_YESNO|MB_ICONQUESTION ".NET Framework 4.5+ is required for ProgramX2013, \
            do you want to launch the web installer? This requires a valid internet connection." IDYES InstallDotNet IDNO Cancel 
        Cancel:
            MessageBox MB_ICONEXCLAMATION "To install ProgramX, Microsoft's .NET Framework v${DOT_MAJOR}.${DOT_MINOR} \
                (or higher) must be installed. Cannot proceed with the installation!"
            ${OpenURL} "${WWW_MS_DOTNET4_5}"
            RMDir /r "$INSTDIR" 
            SetOutPath "$PROGRAMFILES"
            RMDir "$INSTDIR" 
            Abort

        ; Install .NET4.5.
        InstallDotNet:
            DetailPrint "Installing Microsoft .NET Framework 4.5"
            SetDetailsPrint listonly
            ExecWait '"$INSTDIR\dotNETFramework\dotNetFx45_Full_setup.exe" /passive /norestart' $0
            ${If} $0 == 3010 
            ${OrIf} $0 == 1641
                DetailPrint "Microsoft .NET Framework 4.5 installer requested reboot."
                SetRebootFlag true 
            ${EndIf}
            SetDetailsPrint lastused
            DetailPrint "Microsoft .NET Framework 4.5 installer returned $0"
    ${EndIf}

    ; Now remove the dotNETFramework directory and contents.
    RMDir /r "$INSTDIR\dotNETFramework" 
FunctionEnd

This method seemlessley launches the .NET4.5 installer if there is an internet connection and returns after the installation is complete.

如果有internet连接，这个方法会启动. net4.5安装程序，并在安装完成后返回。

I hope this helps someone else.

我希望这能帮助别人。

2  

Here's a simple NSIS Function that checks for .NET versions (works for 4.5, 4.5.1, 4.5.2 and 4.6). The numeric comparisons are based on MSDN.

这里有一个简单的NSIS函数，用于检查。net版本(适用于4.5、4.5.1、4.5.2和4.6)。数值比较基于MSDN。

Place the function in your NSIS file and invoke it like so

将函数放在NSIS文件中，并像这样调用它

Call CheckForDotVersion45Up
Pop $0
DetailPrint $0

Here is the function.

这是函数。

; returns a numeric value on the stack, ranging from 0 to 450, 451, 452 or 460. 0 means nothing found, the other values mean at least that version
Function CheckForDotVersion45Up

  ReadRegDWORD $0 HKLM "SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full" Release

  IntCmp $0 393295 is46 isbelow46 is46

  isbelow46:
  IntCmp $0 379893 is452 isbelow452 is452

  isbelow452:
  IntCmp $0 378675 is451 isbelow451 is451

  isbelow451:
  IntCmp $0 378389 is45 isbelow45 is45

  isbelow45:
  Push 0
  Return

  is46:
  Push 460
  Return

  is452:
  Push 452
  Return

  is451:
  Push 451
  Return

  is45:
  Push 45
  Return

FunctionEnd

1  

Now that .NET Framework 4.5.1 is available the actual value of DWORD named Release in the registry needs to be checked, not just its existence.

既然。net Framework 4.5.1已经可用，那么需要检查注册中心中名为Release的DWORD的实际值，而不仅仅是它的存在。

A value of 378758 means that .NET Framework 4.5.1 is installed, however, as described here this value is 378675 on Windows 8.1.

然而，值378758意味着安装了。net Framework 4.5.1，正如这里描述的，这个值在Windows 8.1上是378675。

0  

If you're looking for options with .net framework 4.0+ (and above) including

如果您正在寻找。net framework 4.0+(及以上版本)的选项，包括

• .net 4.5
• net 4.5
• .net 4.5.1
• net 4.5.1

you can also check this plug-in for NSIS: DotNetChecker

您还可以为NSIS: DotNetChecker检查该插件