In Inno Setup is it possible to add conditional statements to what in the [Run] section gets executed?

Question

Alternatively is it possible to manually update the built in progress bar? Basically I have 2 MSIs included and using Inno Setup as a bootstrapper, and depending on user inp

Answer 1

Why not simply try something like this:

[Files]
Source: ClientSetup.msi; DestDir: {tmp}; Flags: deleteafterinstall; Components: Client
Source: ServerSetup.msi; DestDir: {tmp}; Flags: deleteafterinstall; Components: Server

[Run]
Filename: msiexec.exe; Parameters: /i "{tmp}\ClientSetup.msi" /qb INSTALLDIR="{code:GetInstallPath}\Client\" ALLUSERS=2; WorkingDir: {tmp}; StatusMsg: Installing client; Components: Client
Filename: msiexec.exe; Parameters: /i "{tmp}\ServerSetup.msi" /qb INSTALLDIR="{code:GetInstallPath}\Server\" ALLUSERS=2; WorkingDir: {tmp}; StatusMsg: Installing server; Components: Server

[Components]
Name: Client; Description: Client Installation
Name: Server; Description: Server Installation

Of course you don't necessarily have to use Components. You did not write how you decide which installer to run. If you need more complex logic you could also use Check functions as in:

[Files]
Source: ClientSetup.msi; DestDir: {tmp}; Flags: deleteafterinstall; Check: CheckClient
Source: ServerSetup.msi; DestDir: {tmp}; Flags: deleteafterinstall; Check: CheckServer

[Run]
Filename: msiexec.exe; Parameters: /i "{tmp}\ClientSetup.msi" /qb INSTALLDIR="{code:GetInstallPath}\Client\" ALLUSERS=2; WorkingDir: {tmp}; StatusMsg: Installing client; Check: CheckClient
Filename: msiexec.exe; Parameters: /i "{tmp}\ServerSetup.msi" /qb INSTALLDIR="{code:GetInstallPath}\Server\" ALLUSERS=2; WorkingDir: {tmp}; StatusMsg: Installing server; Check: CheckServer

[Code]
function CheckClient: Boolean;
begin
  Result := WhateverCondition;
end;

function CheckServer: Boolean;
begin
  Result := WhateverOtherCondition;
end;