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I'm getting the error message below when trying to synchronize a SQL compact database (SQL CE 2.0) to a SQL Server 2005 database.

I have double and triple checked permissions, reconfigured IIS multiple times, and I've run Process Monitor to see that the .IN/.OUT files are being created in my temporary directory.

Error Messages: Initializing SQL Server Reconciler has failed. Try again. HRESULT 0x80045901 (29045)

The merge process could not initialize the message file from Subscriber 'C:\Program Files\Microsoft SQL Server CE 2.0\Server\CE578B80-DE68-11CB-8000-F391ABB1F993.IN:C:\Program Files\Microsoft SQL Server CE 2.0\Server\CE578B80-DE68-11CB-8000-F391ABB1F993.OUT'. (Source: Merge Replication Provider, Error number: -2147198719)

The operation could not be completed.

Does anyone have any ideas on what I sould try next to get this resolved?

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Take a look at this link and see if it helps you out: It is for SQL Compact 3.5 though.

Quoted below from this link:

Your SQL Server name/credentials are not working:

Failure to connect to SQL Server with provided connection information. SQL Server does not exist, access is denied because the IIS user is not a valid user on the computer running SQL Server, or the password is incorrect.

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Unfortunately that solution applies not to the initial problem mentioned in that thread, but to fix an error that occurs after reinstall. – notandy Mar 18 '11 at 18:51

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