Inno and Sub Folders Question

I have searched the forums and the Internet but have not been able to find the answer to my question.

My application is a Front-end app to existing programs. I would like to include those programs with mine, but I want them to be in a Sub folder in the root install directory. Also, some of these applications have Sub Folders in them as well and I would like to keep that file structure. If you just add "Sub Folders" using the wizard, it adds all the files but they are all in the root install directory.

Example:
My program install location=C:\My Program
App1 = C:\My Program\App1
App2 = C:\My Program\App2 <---App2 exe goes here
App2 = C:\My Program\App2\SubFolder1
App2 = C:\My Program\App2\SubFolder1\SubFolder2
App2 = C:\My Program\App2\SubFolder1\SubFolder2\SubFolder3

Hopefully that makes sense.

I will assume this is fairly difficult to do. If users request that I bring along the exes that I made front ends for, I will just use a Zip file instead of Inno.