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Inno Setup Dependency Installer

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4.89/5 (171 votes)
28 Sep 2021CPOL2 min read
Download and install any dependency such as .NET, Visual C++ or SQL Server during your application's installation!
In this article you will see installation, usage, integration, details, and dependencies of Inno Setup Dependency Installer.

Inno Setup Dependency Installer


Inno Setup Dependency Installer can download and install any dependency such as .NET, Visual C++ or SQL Server during your application's installation. In addition, it is easy to add your own dependencies as well.

Installation and Usage

  1. Download and install Inno Setup 6.2+.
  2. Download the script from here or the Github repository.
  3. Open the extracted CodeDependencies.iss file.
  4. Comment out dependency defines to disable installing them in the example setup and leave only dependencies that need to be installed:
    • Pascal
      #define UseVC2013 <-- installed in example setup
    • Pascal
      ;#define UseVC2013 <-- commented out and not installed in example setup
  5. Modify other sections like [Setup] [Files] [Icons] as necessary.
  6. Build setup using Inno Setup compiler.


You can include CodeDependencies.iss file into your setup, disable compilation of the example setup, forward the required Inno Setup functions to the shared dependency code, and call the dependency install functions as needed:

#define Dependency_NoExampleSetup
#include "CodeDependencies.iss"

; ...

procedure InitializeWizard;

function PrepareToInstall(var NeedsRestart: Boolean): String;
  Result := Dependency_PrepareToInstall(NeedsRestart);

function NeedRestart: Boolean;
  Result := Dependency_NeedRestart;

function UpdateReadyMemo(const Space, NewLine, MemoUserInfoInfo, MemoDirInfo, MemoTypeInfo, MemoComponentsInfo, MemoGroupInfo, MemoTasksInfo: String): String;
  Result := Dependency_UpdateReadyMemo(Space, NewLine, MemoUserInfoInfo, MemoDirInfo, MemoTypeInfo, MemoComponentsInfo, MemoGroupInfo, MemoTasksInfo);

function InitializeSetup: Boolean;
  // add the dependencies you need
  // ...

  Result := True;


You have two ways to distribute the dependency installers. By default, the dependency will be downloaded from the official website once it is defined as required in the CodeDependencies.iss file. Another way is to pack the dependency into a single executable setup like so:

  • Include the dependency setup file by defining the source:

    Source: "dxwebsetup.exe"; Flags: dontcopy noencryption
  • Call ExtractTemporaryFile() before the corresponding Dependency_Add function


The installation routine of the dependencies is automatic, and in quiet or semi quiet mode. Therefore, no user interaction is needed.


  • .NET
    • .NET Framework 3.5 Service Pack 1
    • .NET Framework 4.0
    • .NET Framework 4.5.2
    • .NET Framework 4.6.2
    • .NET Framework 4.7.2
    • .NET Framework 4.8
    • .NET Core Runtime 3.1
    • ASP.NET Core Runtime 3.1
    • .NET Desktop Runtime 3.1
    • .NET Runtime 5.0
    • ASP.NET Core Runtime 5.0
    • .NET Desktop Runtime 5.0
  • C++
    • Visual C++ 2005 Service Pack 1 Redistributable
    • Visual C++ 2008 Service Pack 1 Redistributable
    • Visual C++ 2010 Service Pack 1 Redistributable
    • Visual C++ 2012 Update 4 Redistributable
    • Visual C++ 2013 Update 5 Redistributable
    • Visual C++ 2015-2019 Redistributable
  • SQL
    • SQL Server 2008 R2 Service Pack 2 Express
    • SQL Server 2012 Service Pack 4 Express
    • SQL Server 2014 Service Pack 3 Express
    • SQL Server 2016 Service Pack 2 Express
    • SQL Server 2017 Express
    • SQL Server 2019 Express
  • DirectX End-User Runtime


Thanks to the community for sharing many fixes and improvements. To contribute, please create a pull request.

This article was originally posted at


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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Comments and Discussions

QuestionSupport for SQL Server 2019 LocalDB Pin
Rubal Walia29-Sep-21 14:07
MemberRubal Walia29-Sep-21 14:07 
GeneralMy vote of 5 Pin
Ștefan-Mihai MOGA28-Sep-21 19:24
professionalȘtefan-Mihai MOGA28-Sep-21 19:24 
GeneralMy vote of 5 Pin
Member 1370414323-Jun-21 4:11
MemberMember 1370414323-Jun-21 4:11 
Thank you
QuestionLatest version fails to install dependency Pin
coder1129-Jun-21 10:56
Membercoder1129-Jun-21 10:56 
QuestionNo way to report issues for InnoDependecyInstaller Pin
coder1129-Jun-21 9:25
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QuestionVB dependencies Pin
gwittlock23-Dec-20 7:57
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AnswerRe: VB dependencies Pin
Michael.Ragsdale23-Dec-20 8:33
MemberMichael.Ragsdale23-Dec-20 8:33 
GeneralRe: VB dependencies Pin
gwittlock23-Dec-20 10:01
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GeneralRe: VB dependencies Pin
Michael.Ragsdale23-Dec-20 10:03
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AnswerRe: netcorecheck.exe source code Pin
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QuestionVisual C++ 2010 SP1 Pin
Yves Goergen1-Dec-20 3:26
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QuestionBest way Pin
ltdeta25-Nov-20 1:37
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GeneralMy vote of 5 Pin
Veli V25-Nov-20 1:01
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QuestionCould you please add Universal C Runtime 2019 support? Pin
tweber20121-May-19 9:00
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QuestionExtracting Pin
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QuestionIssues with vcredist2017 Pin
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AnswerRe: Issues with vcredist2017 Pin
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GeneralMy vote of 5 Pin
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QuestionCzech translation Pin
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QuestionFile encoding Pin
justscribe26-Aug-17 12:09
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PraiseWell done ! Pin
RickZeeland23-Aug-17 1:53
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QuestionInstalling vcredist offline version displays error message: "An error occured while installing the dependencies..." Pin
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AnswerRe: Installing vcredist offline version displays error message: "An error occured while installing the dependencies..." Pin
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