I got this error message when I tried to use an alternative place for the data files, I have checked the permissions on the destination directory, and I can't see any reason why this would happen
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Create failed for Database 'Database_1'. (Microsoft.SqlServer.Smo)
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For help, click: http://go.microsoft.com/fwlink ProdName=Microsoft SQL Server&ProdVer=9.00.1116.00&EvtSrc=Microsoft.SqlServer.Management.Smo.ExceptionTemplates.FailedOperationExceptionText&EvtID=Create+Database&LinkId=20476
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Program Location:
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.CreateImpl()
at Microsoft.SqlServer.Management.Smo.Database.Create()
at Microsoft.SqlServer.ExpressManager.Commanders.DatabaseCommander.DatabaseModel.ApplyChanges()
at Microsoft.SqlServer.ExpressManager.Commanders.DatabaseCommander.DatabaseMainController.ApplyChanges()
at Microsoft.SqlServer.ExpressManager.Framework.CommanderHost.OK()
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An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)
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Program Location:
at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(String sqlCommand, ExecutionTypes executionType)
at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(StringCollection sqlCommands, ExecutionTypes executionType)
at Microsoft.SqlServer.Management.Smo.ExecutionManager.ExecuteNonQuery(StringCollection queries, Boolean bUseMaster)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.ExecuteNonQuery(StringCollection queries, Boolean includeDbContext)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.CreateImplFinish(StringCollection createQuery, ScriptingOptions so)
at Microsoft.SqlServer.Management.Smo.SqlSmoObject.CreateImpl()
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The file "D:\Database Files\Database_1.mdf" is compressed but does not reside in a read-only database or filegroup. The file must be decompressed.
CREATE DATABASE failed. Some file names listed could not be created. Check related errors. (.Net SqlClient Data Provider)
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For help, click: http://go.microsoft.com/fwlink ProdName=Microsoft%20SQL%20Server&ProdVer=09.00.1116&EvtSrc=MSSQLServer&EvtID=5118&LinkId=20476
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Server Name: OFFICEPC\SQLEXPRESS
Error Number: 5118
Severity: 16
State: 1
Line Number: 1
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Program Location:
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async)
at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe)
at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(String sqlCommand, ExecutionTypes executionType)

Using SQLExpress Manager to Create Database
MarkDuffy
and looking at Explorer, I can see that the path
C:\Program Files\Microsoft SQL Server\MSSQL\Data
Is not compressed for some reason, while other files are
I am decompressing now, but it's going to take a few hours, hopefully that should be the cause
Thanks!
KCReed
-Euan
JMZuniga