Relative path to wwwroot for C++ Builder

I am using C++ Builder 10.2.3 with Intraweb 15.6.1

I am trying to access a subfolder (myfolder) I created in wwwroot following this reference article:

https://docs.atozed.com/docs.dll/develop...20XIV.html

This for sure does not work as a relative path in C++ builder: "\\myfolder\\myfile.xml"
It is referring to C:\myfoler\myfile.xml

This one is close: "myfolder\\myfile.xml". But is referring to the application path were the .exe is running!

So, in C++ Builder, how can I use a relative path to access a file or subfolder located in wwwroot?