How to set a default installation path based on user environment variable?

[alexiaamber]

Hi everyone,

I'm currently working on an installer using Advanced Installer (Professional edition), and I’d like to set the default installation path based on a custom environment variable defined on the user's system (e.g., %MY_CUSTOM_DIR%).

I tried using the APPDIR property with a formatted path like [MY_CUSTOM_DIR]\MyApp, but it seems the variable isn't being resolved properly during the install.

Has anyone dealt with a similar setup? What’s the correct way to reference environment variables in the installation path, or is there a recommended workaround?

Thanks in advance for your help!

[Catalin]

Hello and welcome to our forums,

First of all, please accept my apologies for the delayed reply - it's holiday season and we are a bit behind on schedule on support due to colleagues being away.

To achieve what you need, you can use a PowerShell script that retrieves the value of your environment variable and then set APPDIR using that same PowerShell script, using AI_SetMsiProperty cmdlet.

Please let me know if you require any further assistance.

Best regards,
Catalin