Changing location of install?

Everything automatically downloads to Program Files (x86), and I don't have a problem with that. It's a game. The base game and all four expansions install to (x86) but the file I need to install with the game installs automatically to Program Files and does not offer the option to change where it is installed. Since it goes to Program Files, it says the game's not installed, because the game is only in (x86).

Is there a roundabout way of controlling where the installer (it's an .exe file) installs the file?

InstallShield Wizard pops up, does its thing and the next pop up tells me the game isn't installed, while I have the disk in the drive and know that it works.

Usually installers give you an option to change directory via custom or advanced option. If not you could just move the folder manually after install.

It would be simple if it installed the folder or file anyway, but it doesn't. It says it's preparing the Wizard, and then says that I cannot install the file or folder unless the game is installed. I tried simply copy and pasting the game's folder into Program Files, but that, of course, didn't work. It doesn't offer any options regarding where to download the file; it simply starts running once I click on it, with no option given.