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InstallShield 2012 Express Edition User Guide - Knowledge Base ...

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How <strong>InstallShield</strong> Creates the Operating System Launch Conditions<br />

Chapter 2: Getting Started<br />

Project Assistant<br />

When you specify operating system requirements on the Installation Requirements page, you are<br />

essentially excluding operating systems that do not support your application.<br />

For example, if you select only the check box for the latest Windows operating system, <strong>InstallShield</strong><br />

creates a launch condition to exclude the operating systems that you did not select on the Installation<br />

Requirements page. With this type of launch condition, future versions of Windows operating systems<br />

are supported automatically because they are not excluded in the launch condition.<br />

When Does the Installation Check for Requirements?<br />

To ensure that the required software or operating system is present on the target system, the installation<br />

checks for these requirements in the beginning of the installation before any files are transferred.<br />

Modifying the Run-Time Message for Software Requirements<br />

If your installation has software requirements and the target system does not have the selected software,<br />

a run-time message is displayed during the installation. You can modify the message that is displayed.<br />

Task To modify the run-time message:<br />

1. In the Project Assistant, open the Installation Requirements page.<br />

2. Select Yes in answer to the software requirements question.<br />

3. Select the software that your application requires. The default run-time message is displayed to the<br />

right.<br />

4. Click the run-time message to edit it.<br />

Creating Custom Installation Requirements<br />

You can specify target system requirements in your installation project by using the Project Assistant or<br />

the Requirements view of the Installation Designer (IDE). When you specify system software<br />

requirements, you must run through the System Search Wizard. The System Search Wizard provides the<br />

Windows Installer capability to search for a particular file, folder, registry key or .ini value on a target<br />

system prior to installation.<br />

Task To access the System Search Wizard in the Project Assistant:<br />

1. In the Project Assistant, open the Installation Requirements page.<br />

2. In the More Options area, click Create a custom software condition.<br />

<strong>InstallShield</strong> <strong>2012</strong> <strong>Express</strong> <strong>Edition</strong> <strong>User</strong> <strong>Guide</strong> ISE-1800-UG01 61

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