Is it possible in Win10 to have a path which shows the content from multiple folders?

I have a program (call it App1) which read data from c:\ProgramData\ProgramCompanyName\App1\

I need to get the content of ProgramCompanyName on another disk, so i moved that folder to D:\App1\ProgramCompanyName\ and made a symlink in c:\ProgramData\, and all works flawlessy.

Now i have another program, App2, which reads data from c:\ProgramData\ProgramCompanyName\App2\, and again i still need to keep the content of ProgramCompanyName on another disk (so no, i can't just symlink App1 and App2 in c:\ProgramData\ProgramCompanyName).

So, in the end, i want to have:

dir D:\App1\ /S   ProgramCompanyName\file1-1   ProgramCompanyName\file1-2   ProgramCompanyName\App1\file1-3   ProgramCompanyName\App1\file1-4dir D:\App2\ /S   ProgramCompanyName\file2-1   ProgramCompanyName\file2-2   ProgramCompanyName\App2\file2-3   ProgramCompanyName\App2\file2-4dir c:\ProgramData\ProgramCompanyName /S   file1-1   file1-2   file2-1   file2-2   App1\file1-3   App1\file1-4   App2\file2-3   App2\file2-4

There's a way to "join" ("merge"? i don't even know the terminology) two folders (D:\App1\ProgramCompanyName\ and D:\App2\ProgramCompanyName\) to access them as if they are a single one?

I know about Windows Libraries but (AFAIK) a library does not have a path.

Thanks