David's Weblog

Recently, I’ve tried to use a custom software condition to make sure that IIS is already installed on the target machine, but without success.

For example, I want the installer to detect the presence of IIS registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\InetStp

After testing this in many different ways I’ve come to the conclusion that this feature does not work as it should. It never detects the registry key, or any other key/value in the registry.

There are no such problems when using InstallScript to detect registry keys/values.

I put together a test application and a tutorial for InstallShield 2010 (should also work fine for InstallShield 12).  Together these provide an example of reading an environment variable and using it to determine the installation folder at runtime.

It is a very detailed tutorial because there are many different settings that InstallShield provides.

Here is the tutorial in PDF format.

Here is the source code. You should be able to download this, open it in InstallShield 2010, build it and test the setup.exe it creates.

I hope this helps you and if it does please let me know!