Installing Files to Multiple Drives

You can install files to multiple drives using single MSI. You do not require custom actions or scripts to do that. You just need to put some tricks in the directory table. So here it goes...

Suppose you need to install some files on D Drive, some on E Drive and some on F Drive.

First create property in property table for these drives.

Click to view.

You can also use Set Property custom action if you do not want to hardcode it and use some environment variables from your builds.

Now in Directory table put the following entries:

Click to view.

Notice that Directory_Parent is kept blank.

Now if you go to the file section of installation expert, you can see these folders separately on the top. You can add your folders and files as desired now in these.

At installation time the property will resolve the drive and make your files to install at the correct location.

This procedure might give you ICE error, but you can ignore those. It will have no impact on the working of MSI.