Hello Chris,
Thank you for your help.
We've found the solution;
Our application (maya) consist of 20 PBL librairies.
One of these librairies ( app_ws.pbl ) content all the proxy objects necessary to call the webservices.
The project ( p_maya ) is used to generate the EXE file and all the pbd librairies.
In this project, we have checked all the 20 librairies pbl to be generated in PBD EXCEPTED the app_ws.pbl. We forgot to check this library.
We've generated and deployed the application ;
When we run the application, we got the error 100 (Invalid proxy name) when the "CreateInstance" is executed.
After that, in the project we've checked the library app_ws.pbl to be generated in PBD
We generate and deploy the application.
We run the application, and everything works fine !
Regards,
P. Antoine.