I tried to pass parameter use the method describe in this URL: http://infopathdev.com/howto/tutorials/default.aspx?i=af9e48a6e43c41f4be62296a7fa0e494
and I dont know how and where Define the parameter Squema(the first step in the instruction URL). The question is: Where I can define this squema? In wich file I put the squema, in myschema.xsd ...