Gets and sets the hostname or IP address of a proxy server.
A string which specifies the hostname or IP address of the proxy server that will be used when establishing a connection.
The ProxyHost property should be set to the name of the proxy server that you want to connect to. This property may be set to either a fully qualified domain name, or an IP address. This property is only used if the ProxyType property specifies a proxy server type other than proxyNone.