DSZ ZMODEM problem

[Harrison Y. Lee]

	Does anyone knows how to use DSZ Zmodem protocol in unix, I got
	the program and tried it with Procomm Plus 2.0 with internal
	Zmodem built in, it doesn't seems to work with both the built
	in zmodem and the external DSZ zmodem.
	I started the sending in unix and go to Procomm Plus and initialize
	the receiving and I got timeouts and had to abort the transmission.

	Do I need to do some extra works in unix to get it work??

	Thanks for any help!