Ok, I think my question is being misunderstood.
In order to evaluate 2019R3LTS, I need to download and install. In order to download the install package (IDE, Compiler and Runtime) I first need to download (and run) the powerbuilder_bootstapper.exe.
Firstly, I don't get the option where to install the bootstapper as it just decides to install under 'C:\Program Files (x86)...'. This can be tolerated as I can do this off a temp VM which overrides our policy on NOT installing onto the C drive. Once this bootstapper is installed and and running I can choose to create an offline install package of 2019R3 and place this in a defined location. Once this has been completed I can copy this package to our software UNC path and rollback this VM to remove all traces of the bootstrap code installed on the C drive.
Once the VM is back up and joined to domain, I can copy the 2019R3 install package back to the VM (now on domain) and begin the install. When installing the IDE and Compiler, I get an option to change the install path HOWEVER when installing the supplied runtime package, there IS NO option to pick a location.
This is not an issue using Powerbuilder's runtime packager to produce a runtime package (which we choose to not install as part of our installation anyhow), this is an issue with the Appeon supplied Runtime package portion of the initial installation produced by the powerbuilder_bootstap.exe.
- - Shane - -
If you do try my suggestion of running the MSI via the msiexec approach please let me know if that works for you. Thanks.