Hi Rick, My VFP9 app has been making calls to a vendor's soap based web service for over 10 years. I used WW Proxy generator to develop my interface with the vendor's service. Until a few days ago, this worked fine. Users left for the day. Users came back in next morning. When my users do a particular task in my app, my app makes a call to the vendor's service. Vendor's service is returning a StatusCode 888 and a StatusMessage "Invalid Credentials". Vendor says nothing has changed on their end. I say the same for my end. We are at an impass. It sounds like I need to show the vendor the actual XML sent to their service. I am in foxpro debugger and see the object that I am passing to the endpoint. All the values are filled properly with correct values. How can I see the actual XML that gets transmitted to the service? Is that possible?

Thank You, John

Yes you can use Fiddler Classic. Use the old version which is free and actually works better...

        
powershell
        

            
        
     
winget install Telerik.Fiddler.Classic

You run Fiddler and set it to use Non-Web apps (on the status bar - not required, but limits what shows up in the capture window as it captures all Http traffic unless you filter).

Then startup your desktop app and run your requests.

You'll likely have to configure the Secure Connection and Fiddler certificate.

+++ Rick ---