Error related to deployement

We are integrating two applications. For that purpose we have one machine in workgroup and one machine in domain.

The machine present in workgroup have Windows 2003 operating system, SQL server 2000 along with service pack SP3a, Biztalk

server 2004 along with service pack SP1 and small patches required for biztalk server installation.

The machine present in domain have windows 2000 operating system and SQL server 2000 installed on it.

The com setting for windows 2003 machines is as

Network Configuration — Allowed
Network DTC Access — Allowed
Network Administration — Allowed
Network Transcation — Allowed
Network Client — Allowed

DTC Logon Account — NT AUTHORITY/ Network service

The com setting for windows 2000 machines is as

Authetication level —- Null

Impersonation level —- Identify

We want to connect the databases present on these two machines through VPN. We are able to access domain machine by IP

address but not by Name. Two different firewalls are present on these two machine. From workgroup machine all ports are kept

open and from Domain machine ports such as 1433, 135, 5000-5020 are kept open.

When we have deploy application it gives me following error

\”[b:b5bdc317f8]Failed updating binding information. BindingException: Could not validate
TransportTypeData or Address properties for Primary Transport of Send Port
‘SendPort1’. Exception from HRESULT: 0x80131500[/b:b5bdc317f8]\”

I am very much scared about how can i run this application. Please anyone help me to run this application.
Any suggestion will be accepted.

Thanks in advanced.