This feature is available since WebSphere Partner Gateway 6.2 FP3.  This gives the users from WebSphere Partner Gateway 6.0, 6.1, 6.11 more incentive to upgrade to 6.2 just so you can access this function. The advantage of this feature is to enable external partners with supported browser to participate in B2B integration. In other words, we are offering some B2B capability for WebSphere Partner Gateway 6.2 fixpack 3 customers to do transactions with their external partners who do not have a formal B2B application with infrastructure to make it happen. This feature will allow you to include trade partners with a smaller operational scale. Please note here that the feature will work with supported browsers only.

Some important points to note here are :

-You can send a maximum of 10 MB document  to internal partners .Note: It can be more or less based on the network, Browser, and memory

-You can not delete Web box receiver

-You can not send EDI/XML documents over binary channel.