Installscript programming tutorial

[jwe330]

Hi,

Does the above exists? I am looking for a good installscript programming book.
I need to create a installscript for a basic MSI package that does the following:

* Check if the application is installed based on a registry value.
* If the application is installed then give an option to quit and manually uninstall the application or continue to install another copy of the application.

any help will be appreciated.

Thanks.

[Christopher_Pai]

You don't need InstallScript to do that, MSI can do those things natively. Have you looked at Multiple Instance MSI?