
Use the ICISite interface PASVPortMax property to determine or set the highest port in a range where a Site listens for PASV connections.
Signature:
HRESULT PASVPortMax([out, retval] long *pVal);
HRESULT PASVPortMax([in] long newVal);
Refer to Site FTP Settings Properties for an illustration of how this and other ICISite properties can be accessed in the Administrator interface.