Jdb fails to connect to running java application over sockets

I'm trying to use jdb to connect to a running instance of a java program.
If I use dt_shmem:
java -agentlib:jdwp=transport=dt_shmem,address=shmem,server=y,suspend=n JDBTest
jdb -attach shmemSet uncaught java.lang.Throwable
Set deferred uncaught java.lang.Throwable
Initializing jdb ...
quitworks fine.
If I use dt_socket, jdb crashes:
java -agentlib:jdwp=transport=dt_socket,address=9000,server=y,suspend=n JDBTestP:\workspace\JDBTest>jdb -attach 9000
java.io.IOException: shmemBase_attach failed: The system cannot find the file specified
at com.sun.tools.jdi.SharedMemoryTransportService.attach0(Native Method)
at com.sun.tools.jdi.SharedMemoryTransportService.attach(SharedMemoryTra
nsportService.java:90)
at com.sun.tools.jdi.GenericAttachingConnector.attach(GenericAttachingCo
nnector.java:98)
at com.sun.tools.jdi.SharedMemoryAttachingConnector.attach(SharedMemoryA
ttachingConnector.java:45)
at com.sun.tools.example.debug.tty.VMConnection.attachTarget(VMConnectio
n.java:358)
at com.sun.tools.example.debug.tty.VMConnection.open(VMConnection.java:1
68)
at com.sun.tools.example.debug.tty.Env.init(Env.java:63)
at com.sun.tools.example.debug.tty.TTY.main(TTY.java:964)
Fatal error:
Unable to attach to target VM.
It looks like jdb is trying to connect over shared memory instead of using sockets.
Trying jdb -attach localhost:9000 has the same effect.
I can however connect to the running Java program using the Eclipse debugger using a remote configuration.
What can I do that jdb will use sockets?
I'm using Windows 2000 SP4 and Java 1.5.0_07.
Many thanks in advance
Thomas

jdb -help says:
-attach <address>
attach to a running VM at the specified address using standard connector
On Windows the 'standard', ie. default, connector uses the shared memory transport.
To connect to a socket, you need to tell jdb to use the socket attaching connector, ie
jdb -connect com.sun.jdi.SocketAttach:port=9000
It is hard to remember the names and params of all the connectors. You can do
jdb -listconnectors
to refresh your memory.
HTH.

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