如何使vcredist_x86重装只有当还没有安装？如何使vcredist_x86重装只有当还没有安

在我的Inno Setup的RUN选择我强制静默安装MSVCRT的。我不知道如何让它自行安装只有当还没有安装？

这就是我现在请：

Filename: {tmp}\vcredist_x86.exe; Parameters: "/passive /Q:a /c:""msiexec /qb /i vcredist.msi"" "; StatusMsg: Installing 2010 RunTime...

Answer 1:

既然你不想告诉的Visual C您需要++再发行组件包的是什么版本最小，在这里你的代码样本，从中可以由你自己建立这个。请注意，我不知道，什么版本是什么，什么低版本，必须安装，我会记住这在你身上不兼容。

我可以告诉你的唯一的事情是，你绝对应该使用Check条件参数，尝试安装的框架或运行时库向导被打开时的解决方案是错误的。此条件参数工作，当您返回True到它，正在安装的文件，否则为false跳过。所以，你需要真正回到VCRedistNeedsInstall当你想要安装在运行时库函数，否则为False。助手功能VCVersionInstalled它使用常量与开始VC_当安装包，否则假这里返回True。

由于源本我用以下来源：

如何检测的VC 8.0运行时再发行组件包的存在
如何检测的VC 9.0运行时再发行组件包的存在
如何检测的VC 2010运行时可再发行组件包的存在

下面的代码应与Inno Setup的感谢Unicode和ANSI版本兼容kobik的主意，使用条件定义。

下面是代码：

[Files]
Source: "vcredist_x86.exe"; DestDir: {tmp}; Flags: deleteafterinstall

[Run]
; add the Parameters, WorkingDir and StatusMsg as you wish, just keep here
; the conditional installation Check
Filename: "{tmp}\vcredist_x86.exe"; Check: VCRedistNeedsInstall

[Code]
#IFDEF UNICODE
  #DEFINE AW "W"
#ELSE
  #DEFINE AW "A"
#ENDIF
type
  INSTALLSTATE = Longint;
const
  INSTALLSTATE_INVALIDARG = -2;  { An invalid parameter was passed to the function. }
  INSTALLSTATE_UNKNOWN = -1;     { The product is neither advertised or installed. }
  INSTALLSTATE_ADVERTISED = 1;   { The product is advertised but not installed. }
  INSTALLSTATE_ABSENT = 2;       { The product is installed for a different user. }
  INSTALLSTATE_DEFAULT = 5;      { The product is installed for the current user. }

  VC_2005_REDIST_X86 = '{A49F249F-0C91-497F-86DF-B2585E8E76B7}';
  VC_2005_REDIST_X64 = '{6E8E85E8-CE4B-4FF5-91F7-04999C9FAE6A}';
  VC_2005_REDIST_IA64 = '{03ED71EA-F531-4927-AABD-1C31BCE8E187}';
  VC_2005_SP1_REDIST_X86 = '{7299052B-02A4-4627-81F2-1818DA5D550D}';
  VC_2005_SP1_REDIST_X64 = '{071C9B48-7C32-4621-A0AC-3F809523288F}';
  VC_2005_SP1_REDIST_IA64 = '{0F8FB34E-675E-42ED-850B-29D98C2ECE08}';
  VC_2005_SP1_ATL_SEC_UPD_REDIST_X86 = '{837B34E3-7C30-493C-8F6A-2B0F04E2912C}';
  VC_2005_SP1_ATL_SEC_UPD_REDIST_X64 = '{6CE5BAE9-D3CA-4B99-891A-1DC6C118A5FC}';
  VC_2005_SP1_ATL_SEC_UPD_REDIST_IA64 = '{85025851-A784-46D8-950D-05CB3CA43A13}';

  VC_2008_REDIST_X86 = '{FF66E9F6-83E7-3A3E-AF14-8DE9A809A6A4}';
  VC_2008_REDIST_X64 = '{350AA351-21FA-3270-8B7A-835434E766AD}';
  VC_2008_REDIST_IA64 = '{2B547B43-DB50-3139-9EBE-37D419E0F5FA}';
  VC_2008_SP1_REDIST_X86 = '{9A25302D-30C0-39D9-BD6F-21E6EC160475}';
  VC_2008_SP1_REDIST_X64 = '{8220EEFE-38CD-377E-8595-13398D740ACE}';
  VC_2008_SP1_REDIST_IA64 = '{5827ECE1-AEB0-328E-B813-6FC68622C1F9}';
  VC_2008_SP1_ATL_SEC_UPD_REDIST_X86 = '{1F1C2DFC-2D24-3E06-BCB8-725134ADF989}';
  VC_2008_SP1_ATL_SEC_UPD_REDIST_X64 = '{4B6C7001-C7D6-3710-913E-5BC23FCE91E6}';
  VC_2008_SP1_ATL_SEC_UPD_REDIST_IA64 = '{977AD349-C2A8-39DD-9273-285C08987C7B}';
  VC_2008_SP1_MFC_SEC_UPD_REDIST_X86 = '{9BE518E6-ECC6-35A9-88E4-87755C07200F}';
  VC_2008_SP1_MFC_SEC_UPD_REDIST_X64 = '{5FCE6D76-F5DC-37AB-B2B8-22AB8CEDB1D4}';
  VC_2008_SP1_MFC_SEC_UPD_REDIST_IA64 = '{515643D1-4E9E-342F-A75A-D1F16448DC04}';

  VC_2010_REDIST_X86 = '{196BB40D-1578-3D01-B289-BEFC77A11A1E}';
  VC_2010_REDIST_X64 = '{DA5E371C-6333-3D8A-93A4-6FD5B20BCC6E}';
  VC_2010_REDIST_IA64 = '{C1A35166-4301-38E9-BA67-02823AD72A1B}';
  VC_2010_SP1_REDIST_X86 = '{F0C3E5D1-1ADE-321E-8167-68EF0DE699A5}';
  VC_2010_SP1_REDIST_X64 = '{1D8E6291-B0D5-35EC-8441-6616F567A0F7}';
  VC_2010_SP1_REDIST_IA64 = '{88C73C1C-2DE5-3B01-AFB8-B46EF4AB41CD}';

  { Microsoft Visual C++ 2012 x86 Minimum Runtime - 11.0.61030.0 (Update 4) }
  VC_2012_REDIST_MIN_UPD4_X86 = '{BD95A8CD-1D9F-35AD-981A-3E7925026EBB}';
  VC_2012_REDIST_MIN_UPD4_X64 = '{CF2BEA3C-26EA-32F8-AA9B-331F7E34BA97}';
  { Microsoft Visual C++ 2012 x86 Additional Runtime - 11.0.61030.0 (Update 4)  }
  VC_2012_REDIST_ADD_UPD4_X86 = '{B175520C-86A2-35A7-8619-86DC379688B9}';
  VC_2012_REDIST_ADD_UPD4_X64 = '{37B8F9C7-03FB-3253-8781-2517C99D7C00}';

  { Visual C++ 2013 Redistributable 12.0.21005 }
  VC_2013_REDIST_X86_MIN = '{13A4EE12-23EA-3371-91EE-EFB36DDFFF3E}';
  VC_2013_REDIST_X64_MIN = '{A749D8E6-B613-3BE3-8F5F-045C84EBA29B}';

  VC_2013_REDIST_X86_ADD = '{F8CFEB22-A2E7-3971-9EDA-4B11EDEFC185}';
  VC_2013_REDIST_X64_ADD = '{929FBD26-9020-399B-9A7A-751D61F0B942}';

  { Visual C++ 2015 Redistributable 14.0.23026 }
  VC_2015_REDIST_X86_MIN = '{A2563E55-3BEC-3828-8D67-E5E8B9E8B675}';
  VC_2015_REDIST_X64_MIN = '{0D3E9E15-DE7A-300B-96F1-B4AF12B96488}';

  VC_2015_REDIST_X86_ADD = '{BE960C1C-7BAD-3DE6-8B1A-2616FE532845}';
  VC_2015_REDIST_X64_ADD = '{BC958BD2-5DAC-3862-BB1A-C1BE0790438D}';

  { Visual C++ 2015 Redistributable 14.0.24210 }
  VC_2015_REDIST_X86 = '{8FD71E98-EE44-3844-9DAD-9CB0BBBC603C}';
  VC_2015_REDIST_X64 = '{C0B2C673-ECAA-372D-94E5-E89440D087AD}';

function MsiQueryProductState(szProduct: string): INSTALLSTATE; 
  external 'MsiQueryProductState{#AW}@msi.dll stdcall';

function VCVersionInstalled(const ProductID: string): Boolean;
begin
  Result := MsiQueryProductState(ProductID) = INSTALLSTATE_DEFAULT;
end;

function VCRedistNeedsInstall: Boolean;
begin
  { here the Result must be True when you need to install your VCRedist }
  { or False when you don't need to, so now it's upon you how you build }
  { this statement, the following won't install your VC redist only when }
  { the Visual C++ 2010 Redist (x86) and Visual C++ 2010 SP1 Redist(x86) }
  { are installed for the current user }
  Result := not (VCVersionInstalled(VC_2010_REDIST_X86) and 
    VCVersionInstalled(VC_2010_SP1_REDIST_X86));
end;

通过更新chuckleplant ：

添加VC ++ 2012产品代码。请注意，可再发行组件包安装两两件事，最低运行时间和额外的运行时。它应该是足够你去寻找最小运行时间。针对微软的Visual C ++ 2012可再发行产品代码的测试会给INSTALLSTATE_UNKNOWN ，用最小的运行代码来代替。它是VC ++ 2013和2015年同样的情况。

你可以找到在其他Visual Studio版本的产品代码HKEY_CLASSES_ROOT\Installer\Dependencies\ ，例如HKEY_CLASSES_ROOT\Installer\Dependencies\Microsoft.VS.VC_RuntimeAdditionalVSU_amd64,v14

Answer 2:

要容易得多：

#define VCmsg "Installing Microsoft Visual C++ Redistributable...."

[Run]
Filename: "vc_redist.x86.exe"; StatusMsg: "{#VCmsg}"; Check: not IsWin64 and not VCinstalled
Filename: "vc_redist.x64.exe"; StatusMsg: "{#VCmsg}"; Check: IsWin64 and not VCinstalled

[Code]
function VCinstalled: Boolean;
 // By Michael Weiner <mailto:spam@cogit.net>
 // Function for Inno Setup Compiler
 // 13 November 2015
 // Returns True if Microsoft Visual C++ Redistributable is installed, otherwise False.
 // The programmer may set the year of redistributable to find; see below.
 var
  names: TArrayOfString;
  i: Integer;
  dName, key, year: String;
 begin
  // Year of redistributable to find; leave null to find installation for any year.
  year := '';
  Result := False;
  key := 'Software\Microsoft\Windows\CurrentVersion\Uninstall';
  // Get an array of all of the uninstall subkey names.
  if RegGetSubkeyNames(HKEY_LOCAL_MACHINE, key, names) then
   // Uninstall subkey names were found.
   begin
    i := 0
    while ((i < GetArrayLength(names)) and (Result = False)) do
     // The loop will end as soon as one instance of a Visual C++ redistributable is found.
     begin
      // For each uninstall subkey, look for a DisplayName value.
      // If not found, then the subkey name will be used instead.
      if not RegQueryStringValue(HKEY_LOCAL_MACHINE, key + '\' + names[i], 'DisplayName', dName) then
       dName := names[i];
      // See if the value contains both of the strings below.
      Result := (Pos(Trim('Visual C++ ' + year),dName) * Pos('Redistributable',dName) <> 0)
      i := i + 1;
     end;
   end;
 end;

Answer 3:

下面是使用Microsoft推荐确定是否安装了VC可再发行方式的一个版本。我只需要VC 2015年，所以你需要为其他版本的适应值和参数：

[Files]
Source: ".\vc-redist\vc-redist\win64\bin\vc_redist.x64.exe"; DestDir: "{tmp}"; Flags: deleteafterinstall; Check: Is64BitInstallMode

; FlexLM requires the VC 2015 redistributables so run the installer if this 
; or a later 2015 version is not already present
[Run]
Filename: "{tmp}\vc_redist.x64.exe"; Parameters: "/install /passive"; StatusMsg: "{#VCmsg}"; Check: IsWin64 and not VCinstalled

[Code]
function VCinstalled: Boolean;
 // Function for Inno Setup Compiler
 // Returns True if same or later Microsoft Visual C++ 2015 Redistributable is installed, otherwise False.
 var
  major: Cardinal;
  minor: Cardinal;
  bld: Cardinal;
  rbld: Cardinal;
  key: String;
 begin
  Result := False;
  key := 'SOFTWARE\Microsoft\VisualStudio\14.0\VC\Runtimes\x64';
  if RegQueryDWordValue(HKEY_LOCAL_MACHINE, key, 'Major', major) then begin
    if RegQueryDWordValue(HKEY_LOCAL_MACHINE, key, 'Minor', minor) then begin
      if RegQueryDWordValue(HKEY_LOCAL_MACHINE, key, 'Bld', bld) then begin
        if RegQueryDWordValue(HKEY_LOCAL_MACHINE, key, 'RBld', rbld) then begin
            Log('VC 2015 Redist Major is: ' + IntToStr(major) + ' Minor is: ' + IntToStr(minor) + ' Bld is: ' + IntToStr(bld) + ' Rbld is: ' + IntToStr(rbld));
            // Version info was found. Return true if later or equal to our 14.0.24212.00 redistributable
            // Note brackets required because of weird operator precendence
            Result := (major >= 14) and (minor >= 0) and (bld >= 24212) and (rbld >= 0)
        end;
      end;
    end;
  end;
 end;