Hibernate version: 1.2.0.1001

Mapping documents:
App.config
---
<configSections>
<section name="nhibernate" type="System.Configuration.NameValueSectionHandler, System, Version=1.2.0.1001,Culture=neutral,PublicKeyToken=b77a5c561934e089" />
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
</configSections>
<connectionStrings>
<add name="CUP.Properties.Settings.ConnectionString" connectionString="Data Source=mydbsource;User ID=myuser;Password=mypassword;Unicode=True"
providerName="System.Data.OracleClient" />
</connectionStrings>
<nhibernate>
<add key="hibernate.connection.provider" value="NHibernate.Connection.DriverConnectionProvider" />
<add key="hibernate.dialect" value="NHibernate.Dialect.Oracle9Dialect" />
<add key="hibernate.connection.driver_class" value="NHibernate.Driver.OracleDataClientDriver" />
<add key="hibernate.connection.connection_string" value="Data Source=mydbsource; User Id=myuser; Password=mypassword;" />
<add key="hibernate.show_sql" value="true" />
</nhibernate>

Full stack trace of any exception that occurs:
Exception : {"Could not create the driver from NHibernate.Driver.OracleDataClientDriver."}
Stack trace :
in NHibernate.Connection.ConnectionProvider.ConfigureDriver(IDictionary settings) in c:\net\nhibernate\nhibernate\src\NHibernate\Connection\ConnectionProvider.cs:riga 84
in NHibernate.Connection.ConnectionProvider.Configure(IDictionary settings) in c:\net\nhibernate\nhibernate\src\NHibernate\Connection\ConnectionProvider.cs:riga 56
in NHibernate.Connection.ConnectionProviderFactory.NewConnectionProvider(IDictionary settings) in c:\net\nhibernate\nhibernate\src\NHibernate\Connection\ConnectionProviderFactory.cs:riga 50
in NHibernate.Cfg.SettingsFactory.BuildSettings(IDictionary properties) in c:\net\nhibernate\nhibernate\src\NHibernate\Cfg\SettingsFactory.cs:riga 61
in NHibernate.Cfg.Configuration.BuildSettings() in c:\net\nhibernate\nhibernate\src\NHibernate\Cfg\Configuration.cs:riga 1485
in NHibernate.Cfg.Configuration.BuildSessionFactory() in c:\net\nhibernate\nhibernate\src\NHibernate\Cfg\Configuration.cs:riga 1000
in CUP.SessionHelper..cctor() in C:\Documents and Settings\luke\Desktop\CUP\CUP\NHibernate\SessionHelper.cs:riga 16
Name and version of the database you are using:Oracle 10g

I had the same problem. You have to change the security permissions in the oracle folder. Unmark the Read & Execute permission for the Users group then mark it again. Boot your comp.
It's a win xp bug.

I would assume it to be Oracle installer bug, as it does not set file/folder permissions properly.

Gert

i tried your suggestion but i'm getting the same error message

i did it on c:\oracle folder in my client installation, right ?

Try to click "advanced" button on security tab, check "Replace permission entries on all child....." and Ok (or apply)

Gert

already did...

but the problem is in my oracle client installation ? why with 1.0.2 i've no exception ?