an integer tag to attach to all messages in order to assist in ignoring earlier defunct instance's messages
if true, aggressively garbage collect imports
provide external import/export tables
if specified, enable this CapTP (guest) to use Trap(target) to block while the recipient (host) resolves and communicates the response to the message
if specified, enable this CapTP (host) to serve objects marked with makeTrapHandler to synchronous clients (guests)
the options to makeCapTP