Winpopup Broadcast? (smbclient -M to workgroup)?

[Marco A. Zamora]

Has anyone modified smbclient to send winpopup-style message broadcasts to
Win95 workgroups/WinNT domains?

If not, any tips on how I could go about doing it? What section of the SMB RFCs
(1001, 1002, 1003) would be likely to talk about it? (I'm not sufficiently
versed in low-level SMB, so most of the RFCs are still Greek to me. So if
someone kindly points me in the right direction I think I'll be able to
decipher the relevant documentation.) 

TIA...			Marco Zamora