Report in background using cl_gui_frontend_services=>gui_download Method

Hello all,

I'm trying to run a report that uses the method cl_gui_frontend_services=>gui_download in background mode, to export data from an internal table to a xml file.

In foreground everything works fine, but when I try to run the report in background the execution stops when the method is called. Does anyone know how to avoid this problem and run the report in background mode?

Thanks in advance,

Nuno A.