The default low-level proxy implementation (AbstractHttpProxy) denies all requests by default. Different requests and/or responses can be enabled by using one of the several predefined proxy classes which are suitable for most tasks. Alternatively, a custom proxy class can be derived from AbstractHttpProxy and the requests and responses enabled individually using different attributes.

Several examples and considerations on how to enable virus filtering in the HTTP traffic are discussed in the Technical White Paper and Tutorial Virus filtering in HTTP, available at the BalaSys Documentation Page http://www.balasys.hu/documentation/.