enumerate the list of MSDE instances

Hi All,
I want to enumerate the list of MSDE instances on LAN using VB6.I
cannot use SQLDMO or SMO library.
I am using NetServerEnum API but it displays only SQL servers and
default MSDE instance.
Is there any API or other means to get the list of named instance of
MSDE in VB6.
Please advice.
Nidhi Sharma
Thanks for your response!
SuperSockets Network Protocols were enabled during installation of
MSDE2000.
I am able to connect successfully using <Computer Name>/
<InstanceName>. But the problem is that i am unable to get the list of
MSDE instances on the LAN.It displays the default instance if present.
Could you guide me how to broadcast UDP on port 1434 in VB6?
Nidhi Sharma