My IIS configuration

My collegue who doesn't have any issues, have a virtual directory csp and zero application

I don't want specially to add a question around my current problem, but How to configure IRIS and IRIS2 (two instance) in VSCODE, because I don't have any key carrying the concept of instance, both have port 80

I installed a second instance of IRIS, called IRIS2

I now have to instance working well with the portale

IRIS | 80 | 1972

IRIS2 | 80 | 1973

I see a web application IRIS2 on IIS

I can open both portales

But I continue to get the NOT FOUND error when I try to connect my local server...