Running pre installation checks

[cuthbe]

How does one use the installer to check for certain registry keys before installed. Is this is condition

[Ionut]

Hi,

You can use one or more Registry Searches. For this purpose, switch to the Search page in AI and use the context menu commands. Alternatively, you can use the Search wizard (accessible through "Wizard -> Search").

You can use the result of the Search in any place where a Windows Installer Property can be used (in a Launch Condition, Custom Action etc).

Regards,
Denis

[cuthbe]

Does the search support regex, as i want to be able to search the registry for the following beginning of the key. Ie show me if there is any Java 1.5 installed on the system.

HKEY_CLASSES_ROOT\CLSID\{CAFEEFAC-0015


You can use one or more Registry Searches. For this purpose, switch to the Search page in AI and use the context menu commands. Alternatively, you can use the Search wizard (accessible through "Wizard -> Search").

You can use the result of the Search in any place where a Windows Installer Property can be used (in a Launch Condition, Custom Action etc).

Regards,
Denis[/quote]

[Ionut]

Hi,

Windows Installer does not support regular expressions.

The different versions of JRE available are enumerated under the following registry key:

Code: Select all

HKLM\SOFTWARE\JavaSoft\Java Runtime Environment

Regards,
Denis