dealing with attachment

Hi

i have abap proxy 2 java proxy with attachment,

after sending by abap proxy with attachement,

i can see word_attachment file and main application(application/xml) on payload on SXMB_MONI.

my question is,,, how can i take word_attachment file in Imple Java from receiver java proxy in order to send that file to external system.

any idea ? is there anyone can help me?

thanks in advance

venjamin