RMO Error with Web replication

I am testing Web merge replication between SQL Server and SQL Server Express.

If I use Windows Synchronization (mobsync.exe) everything goes well.

If have created a simple program in VB.net 2005, using sample code from this forum and MSDN and I always get this error: "The Merge Agent process could not write Web synchronization metadata in the message header. Verify that there is sufficient disk space in the Web synchronization directory. (Source: MSSQL_REPL, Error number: MSSQL_REPL-2147199467)". All parameters are identical to the one used with mobsync.exe

Does anyone know what this error mean and how can I avoid it ?

Thanks in advance,
Riccardo Sabadini

1. Do you mind posting your parameters used in mobsync.exe here? (Please take care of the actual password).

2. Can you check if you have the appropriate port opened on distributor/publisher or subscriber machines?

3. I assume when you run VB.net application, it is on the subscriber machine, rgiht? Do you specify the InternetLogin and Internet password so the app is able to connect to the web sync virtual directory?

Thanks.

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