The provider is not compatible with the version of Oracle client. Hello there,I realise this question and its variants have been asked before and Ive looked through them but am asking this particularly because its quite urgent and also the answers didnt seem to quite fit. I have a set of dlls which contain functions to loadextract data from oracle. Due to a whole load of reasons, Im having to dynamically call them from a. Reflection. Now, when I try running the dll through MSDev, it connects to Oracle fine but when I try to invoke it using reflection from the exe I made sure I referenced the same dll from debug path in my exe for test purposes it throws a provider not compatible error. In the dll project, I bundle the Oracle. Data. Access. dll along with other necessary dlls Ora. Ops. 11w. dll,oci. For some reason I get this error during dynamic invocation. Dont understand why it should mismatch dlls when all of the necessary ones are avaialble in the same path. Any ideas please Thanks,Leo. System. Type. Initialization. Exception was unhandled MessageThe type initializer for Oracle. Data. Access. Client. Oracle. Connection threw an exception. SourceOracle. Data. Access Type. NameOracle. Data. Access. Client. Oracle. Connection Stack. Trace at Oracle. Data. Access. Client. Oracle. Connection. DisposeBoolean disposing at System. Component. Model. Component. Finalize Inner. Exception Oracle. Data. Access. Client. Oracle. Exception MessageThe provider is not compatible with the version of Oracle client SourceOracle Data Provider for. NET Error. Code 2. Data. Source Number 1. Procedure Stack. All software downloads are free, and most come with a Developer License that allows you to use full versions of the products at no charge. Uninstall3.png' alt='Oracle 9I Client For Windows 7 64 Bit Free Download' title='Oracle 9I Client For Windows 7 64 Bit Free Download' />ORACLEHOME instantclient,pathtoinstantclientlib ORACLEHOME. Installing tips and troubleshooting of Oracle 11gR2 64bit client on Windows 7. Advanced Tips. If you have the ADOdb C extension installed, you can replace your calls to rsMoveNext with adodbmovenextrs. This doubles the speed of this. Download the free trial version below to get started. List Of Hotmail Email Addresses Skype. Doubleclick the downloaded file to install the software. Installing OCI8 on Windows. When using Oracle 10gR2 client libraries on Windows, uncomment the php. When using Oracle 11gR2 or later. Trace at Oracle. Data. Access. Client. Oracle. Init. Initialize at Oracle. Data. Access. Client. Oracle. Connection. Inner. Exception Select all. Open in new window.