To download and use Oracle.DataAccess.dll version 4.112.3.0, you must install the specific Oracle Data Access Components (ODAC) package that includes it. This version corresponds to the Oracle 11g Release 2 (11.2.0.3.0) client drivers. 1. Identify the Correct Download
Oracle does not provide standalone DLL files for security and licensing reasons. You must download the full ODAC bundle: Source: Visit the Oracle .NET Software Downloads page. Version Match: Look for ODAC 11.2 Release 3 (11.2.0.3.0).
Architecture: Ensure you choose the correct bitness (32-bit or 64-bit) that matches your application's target platform, not necessarily your OS. 2. Installation Methods
Xcopy Bundle: Best for minimal footprints. You manually register the DLL using OraProvCfg.exe.
Oracle Universal Installer (OUI): Recommended for development machines. It handles the File Locations and GAC registration automatically.
NuGet (Modern Alternative): While version 4.112.3.0 is legacy, you can find official packages on NuGet.org for newer "Managed" versions that don't require a full client installation. 3. Locate the DLL After Installation
Once installed, the file is typically located in your Oracle Home directory:
Path: ORACLE_BASE\ORACLE_HOME\odp.net\bin\4\Oracle.DataAccess.dll
Documentation: Readme and setup guides are usually found in ORACLE_HOME\ODP.NET\doc. 4. Critical Compatibility Notes
Legacy Support: Oracle 11g is in "Sustaining Support" or has reached End of Life, meaning it lacks modern security patches.
OS Requirements: Older ODAC versions may require "Run as Administrator" for installation on Windows 10/11 and may need UAC (User Account Control) to be temporarily disabled.
To get oracle.dataaccess.dll version 4.112.3.0, you must download the specific release of Oracle Data Access Components (ODAC) or Oracle Client that contains it. 🔑 Crucial Facts About This Specific DLL
It is Unmanaged: This specific version belongs to the legacy unmanaged ODP.NET provider. It requires both the .NET assembly and matching local Oracle Client C-libraries (like oci.dll) to be installed on the machine.
No Standalone Download: Oracle does not provide separate, standalone downloads for individual .dll files. You must download the full installer package to ensure all background dependencies are correctly registered.
Exact Matching Required: The unmanaged ODP.NET provider is extremely sensitive to versions. The version of the driver on your system must match your application's expected version exactly or it will fail to load.
Architecture Matters: You must match your application's target platform. If your app runs as a 32-bit (x86) process, you must install the 32-bit client; if it runs as 64-bit (x64), you must install the 64-bit client. 📥 Where to Find the Download
Because this specific version (4.112.3.0) belongs to the Oracle 11g Release 2 (11.2.0.3 or 11.2.0.4) era, it is considered an archive version.
Official Oracle Portal: You can browse full bundles on the Oracle .NET Downloads page.
Oracle Software Delivery Cloud: If you cannot find the archived 11.2 client on the public page, you will need to log into the Oracle Software Delivery Cloud with a valid Oracle commercial license to grab older ODAC or Oracle Database Client setup files.
NuGet (For Dev Environments Only): If you just need to resolve compilation errors or missing assembly references in Visual Studio, community members have uploaded the wrapper to NuGet. You can look at the Oracle.DataAccess.x86.4 4.112.3 package. Warning: This package only helps compile your project. You still need the physical Oracle client installed on the runtime machine to actually query a database. 💡 Modern Alternative: Switch to Managed ODP.NET
If you have control over the source code of the application, the best path forward is to replace this file entirely.
The Oracle.DataAccess.dll version 4.112.3.0 is a core component of Oracle Data Provider for .NET (ODP.NET), specifically released with Oracle Data Access Components (ODAC) 11.2 Release 4. It is designed for applications targeting .NET Framework 4.0 and above that require communication with an Oracle Database. Key Specifications & Context
Version Details: The 4 prefix denotes compatibility with the .NET 4.0 runtime, while 112.3.0 indicates it corresponds to the Oracle 11.2.0.3.0 client.
Release Package: This specific version was officially packaged in ODAC 11.2 Release 4 (released December 2011) and was later updated in Release 5 (11.2.0.3.20).
Architecture Sensitivity: This is an unmanaged driver, meaning its architecture must match your application. 32-bit applications require the 32-bit DLL and 32-bit Oracle Client, while 64-bit applications require the 64-bit counterparts. Official Download Information
Oracle recommends using the latest stable versions from their Official .NET Downloads page for modern security and patches. However, if you specifically require version 4.112.3.0 for legacy compatibility, you should look for archived installers: Oracle.DataAccess.dll ODP.NET vs Nuget package - GitHub
Introduction
Oracle Data Access Components (ODAC) is a library of .NET data providers that enable .NET developers to access Oracle databases. The oracle.dataaccess.dll is a key component of ODAC, which provides a set of classes that allow .NET applications to connect to Oracle databases, execute SQL statements, and retrieve data.
Oracle Data Access Components (ODAC) Version 4.112.3.0
The ODAC version 4.112.3.0 is a specific release of the ODAC library, which supports Oracle Database 12c and later versions. This version of ODAC includes several enhancements and bug fixes, including support for .NET Framework 4.5 and 4.6.
Downloading oracle.dataaccess.dll version 4.112.3.0
To download the oracle.dataaccess.dll version 4.112.3.0, follow these steps:
odac4.112.3.0.exe) and run it on your machine.C:\Oracle\ODAC4.112.3.0) and locate the oracle.dataaccess.dll file.Installation and Configuration
After downloading and extracting the oracle.dataaccess.dll file, you need to install and configure ODAC on your machine: oracle.dataaccess.dll version 4.112.3.0 download
oracle.dataaccess.dll file in the Global Assembly Cache (GAC) using the gacutil.exe tool or by using the ODAC installer.tnsnames.ora file is properly configured on your machine to connect to the Oracle database.oracle.dataaccess.dll file.Conclusion
In this paper, we provided an overview of Oracle Data Access Components (ODAC) and guidance on obtaining the oracle.dataaccess.dll version 4.112.3.0. By following the steps outlined above, you should be able to download, install, and configure ODAC on your machine, enabling your .NET applications to access Oracle databases. If you encounter any issues, you can refer to the Oracle documentation and support resources for further assistance.
Oracle.DataAccess.dll is a critical component of the Oracle Data Provider for .NET (ODP.NET)
. It acts as the bridge between .NET applications (using .NET Framework 4.0 or higher) and the Oracle Database. 🛠️ Technical Profile Component: ODP.NET, Unmanaged Driver Oracle Client Version: 11.2.0.3.0 Target Framework:
.NET Framework 4.x (indicated by the leading "4" in the version number) Available in both 32-bit (x86) 64-bit (x64) Oracle Forums 📥 Where to Download
You cannot typically download this single DLL safely from a third-party site. It must be installed as part of a larger package to ensure all "unmanaged" dependencies (like ) are present. Official Source: Download the Oracle Data Access Components (ODAC) Specific Version: ODAC 11.2.0.3.0 on the Oracle Technology Network. Alternative (Developer): A community-maintained version is available on
, but it still requires the Oracle Client to be installed on the machine. ⚠️ Common Usage & Troubleshooting
Developers often search for this specific version because ODP.NET is version-sensitive
; the DLL version must match the installed Oracle Client version exactly to function. Oracle Forums The "Bitness" Trap:
If your application is "Any CPU" but you only have the 32-bit driver installed, it will fail on 64-bit Windows. You must match the application's process bitness to the driver. If you have multiple versions installed, use the setting in your web.config app.config to force the app to use the correct GAC Installation: This version is often registered in the Global Assembly Cache (GAC)
. If your project reference is "broken," check if the assembly is properly GACed using Oracle Forums 🚀 Modern Recommendation
If you are starting a new project or can refactor, Oracle recommends switching to the Managed Driver Oracle.ManagedDataAccess.dll Oracle Forums
It is a single DLL, does not require an Oracle Client installation, and is platform-independent (works for both 32-bit and 64-bit without extra configuration).
Are you trying to fix an "Assembly not found" error in an existing app, or are you setting up a new development environment? I can provide the specific web.config snippets or installation steps for either case. ODAC 11.2.0.3.0 Install Instructions - Oracle
To download Oracle.DataAccess.dll version 4.112.3.0, you must download the specific release of Oracle Data Access Components (ODAC) that includes it. This unmanaged DLL is part of the Oracle Data Provider for .NET (ODP.NET). 1. Identify the Correct Download Package
The DLL version 4.112.3.0 is included in ODAC 11.2 Release 4 (11.2.0.3.0).
Official Oracle Download: Use the ODAC 11.2.0.3.0 Download & Install Instructions.
Alternative (NuGet): For 32-bit (x86) applications, a community-maintained package is available on NuGet as Oracle.DataAccess.x86.4. 2. Installation Steps
Download the Zip: Choose the version (32-bit or 64-bit) that matches your application's target architecture, not necessarily your OS. Unzip and Run Setup: Extract the files and run setup.exe.
Select Components: Ensure Oracle Data Provider for .NET 4 11.2.0.3.0 is selected during installation.
Registering (Optional): If the DLL is not found automatically, you may need to manually register it in the Global Assembly Cache (GAC) using OraProvCfg.exe:
OraProvCfg.exe /action:gac /providerpath:"C:\path\to\Oracle.DataAccess.dll" Use code with caution. Copied to clipboard 3. Locating the DLL After Installation
Once installed, the physical file is typically located in the bin folder of your Oracle Home:
64-bit: C:\app\
GAC Path: C:\Windows\Microsoft.NET\assembly\GAC_64\Oracle.DataAccess\v4.0_4.112.3.0__89b483f429c47342\ 4. Important Version Matching
Unmanaged ODP.NET is extremely sensitive to versioning. The ODP.NET version must match the Oracle Client version exactly to avoid "Incorrect format" or "Provider incompatible" errors. Required Version DLL Version Oracle Client 11.2.0.3.0 ODAC Release 11.2 Release 4 How to identify ODAC version ? - Oracle Forums
If you have a valid Oracle Support contract, you can locate specific patch numbers (e.g., Patch 14727310) that update ODP.NET to 4.112.3.0. This is the most precise way to get the exact build matching your environment.
oracle.dataaccess.dll version 4.112.3.0 is a stable, widely deployed legacy driver for .NET 4.0 applications connecting to Oracle 11g databases. While reliable, it requires careful attention to 32/64-bit architecture matching and proper installation of the underlying Oracle Client libraries.
The Oracle.DataAccess.dll version 4.112.3.0 is a critical component of the Oracle Data Provider for .NET (ODP.NET), specifically associated with the Oracle 11g Release 2 (11.2.0.3) client stack. This version serves as the bridge between .NET applications and the Oracle Database. Technical Profile Version: 4.112.3.0 Runtime: .NET Framework 4.0 (and later)
Architecture: Available in both 32-bit (x86) and 64-bit (x64) versions. Note that ODP.NET is "unmanaged," meaning the DLL architecture must match the process architecture of your application.
Release Context: Bundled with Oracle Client 11.2.0.3 and ODAC (Oracle Data Access Components) 11.2.0.3.0. Critical Considerations for Use
Deployment Model: This version is an unmanaged driver. Unlike the modern "Managed Driver" (Oracle.ManagedDataAccess.dll), this version requires a full Oracle Client or Instant Client installation on the machine to function. It relies on underlying C++ libraries (OCI). Compatibility:
Database: Supports connections to Oracle 9iR2 through Oracle 11gR2 (and generally 12c). To download and use Oracle
OS: Primarily targeted at Windows Server 2008/2012 and Windows 7/8.
GAC Registration: For many legacy enterprise applications, this DLL must be registered in the Global Assembly Cache (GAC). If you encounter "Could not load file or assembly" errors, it is likely missing from the GAC or there is a bitness mismatch (x86 vs x64). How to Download
Oracle does not typically provide standalone DLL downloads due to licensing and dependency requirements. To get this specific version safely:
Official Source: Download the Oracle Data Access Components (ODAC) for Windows. You specifically need the version matching the 11.2.0.3 release. These are archived on the Oracle Technology Network (OTN).
Instant Client: If you don't want a full install, download the Instant Client with SDK for 11.2.0.3, which includes the necessary OCI files to support the DLL. Common Issues & Fixes
"The provider is not compatible with the version of Oracle client": This happens when the Oracle.DataAccess.dll version in your project doesn't match the version of the oraociei11.dll installed on the system. Always ensure the DLL and the client software are from the same release.
Bitness Mismatch: If your app is compiled for "Any CPU" but runs on a 64-bit OS, it will try to find a 64-bit Oracle client. If you only have the 32-bit client installed, the connection will fail.
oracle.dataaccess.dll version 4.112.3.0 is the primary assembly for the Oracle Data Provider for .NET (ODP.NET) , specifically the unmanaged driver . This version corresponds to Oracle Data Access Components (ODAC) 11.2 Release 4 (or Release 5, which used the same versioning). Oracle Forums Official Download Sources
Oracle does not typically provide unmanaged DLLs as standalone downloads because they rely on native dependencies (like OraOps11w.dll ) and an underlying Oracle Client
installation. To obtain this specific version, you must download the appropriate ODAC bundle: Stack Overflow Oracle ODAC 11.2 Release 4 (11.2.0.3.0) : This package includes the version of the DLL for .NET Framework 4.0. NuGet (32-bit only)
: For local development or simplified deployment of the 32-bit version, you can use the Oracle.DataAccess.x86.4 4.112.3 package on Oracle Archived Downloads : Older ODAC versions are available on the Oracle Additional Downloads Implementation Details ODAC 11.2.0.3.0 Install Instructions
Understanding Oracle.DataAccess.dll (Version 4.112.3.0) If you are working with legacy .NET applications, you’ve likely encountered a "FileNotFound" or "Version Mismatch" error referencing Oracle.DataAccess.dll version 4.112.3.0. This specific file is the core of the Oracle Data Provider for .NET (ODP.NET), acting as the bridge between your C# or VB.NET code and the Oracle Database. What is Oracle.DataAccess.dll 4.112.3.0?
This version belongs to the Oracle 11g Release 2 (11.2.0.3) suite. Version 4.x indicates that it is built for the .NET Framework 4.0 or higher. It is a "native" driver, meaning it relies on underlying Oracle Client software (OCI) installed on the machine to function. Where to Download
Official downloads for version 4.112.3.0 are bundled within the Oracle Data Access Components (ODAC).
Oracle Official Website: The safest route is the Oracle Technology Network (OTN). Look for "ODAC 11.2 Release 3" or later.
Oracle Client Installation: If you install the full Oracle 11g (11.2.0.3) Client, this DLL is typically placed in the Global Assembly Cache (GAC) and the $ORACLE_HOME\odp.net\bin\4 folder.
Warning: Avoid "DLL download" sites. These often provide files that are stripped of their dependencies or contain malware. Because ODP.NET is an unmanaged driver, the DLL alone usually won't work without the rest of the Oracle Client home. How to Install and Register
Simply placing the DLL in your application folder is often insufficient because it requires native binaries (like OraOps11w.dll).
Use the ODAC Installer: Run the setup.exe from the ODAC 11.2 package. Select the ODP.NET component.
GAC Registration: To make the version available globally, use the Global Assembly Cache tool:gacutil /i Oracle.DataAccess.dll
Check Bitwise Compatibility: This is the most common pitfall. If your application is 32-bit (x86), you must use the 32-bit version of the DLL. If it is 64-bit (x64), you must use the 64-bit version. They are not interchangeable. Common Troubleshooting
"The type initializer for 'Oracle.DataAccess.Client.OracleConnection' threw an exception": This usually means the DLL was found, but the underlying Oracle Client (OCI) or its dependencies are missing.
Version Mismatch: If your project references 4.112.3.0 but you have 4.112.2.0 installed, you can use a Binding Redirect in your web.config or app.config to force the application to use the available version. A Modern Alternative: Managed Driver
If you are tired of dealing with heavy Oracle Client installations and "DLL Hell," consider switching to Oracle.ManagedDataAccess.dll. It is available via NuGet, requires no "Oracle Home" installation, and is entirely bit-neutral. While 4.112.3.0 is required for older systems, the Managed Driver is the gold standard for new development.
Finding the exact Oracle.DataAccess.dll version 4.112.3.0 can be tricky because it is an older "unmanaged" driver that is tied to a specific version of the Oracle client software. Stack Overflow Direct Download Options NuGet (x86) Oracle.DataAccess.x86.4 package specifically contains version 4.112.3.0. Official ODAC Package : This DLL is part of the
Oracle Data Access Components (ODAC) 11.2 Release 4 (11.2.0.3.0)
. You can find archived documentation and links for this release on the Oracle ODAC Documentation page Key Technical Constraints No Standalone DLL
: You generally cannot just download the DLL by itself and expect it to work; it requires a matching Oracle Instant Client installation on the machine. Bitness Mismatch
: The version 4.112.3.0 is often associated with the 32-bit (x86) client. If your application is running on a 64-bit OS but compiled as "Any CPU," it may fail to find this DLL unless the 32-bit client is correctly configured. GAC Registration
: After installation, you may need to manually register it in the Global Assembly Cache (GAC) using OraProvCfg.exe located in your Oracle home's ODP.NET\bin\4 Stack Overflow Pro-Tip: Switch to Managed Driver
If you are running into versioning headaches, Oracle now recommends the Oracle.ManagedDataAccess
driver. Unlike the old unmanaged DLL, the managed version is a single, smaller assembly that doesn't require a full Oracle Client installation and isn't sensitive to 32/64-bit architecture. Oracle Forums ODAC 11.2.0.3.0 Install Instructions - Oracle
The assembly Oracle.DataAccess.dll version 4.112.3.0 is the primary driver for Oracle Data Provider for .NET (ODP.NET), specifically bundled with ODAC 11.2 Release 4 (11.2.0.3.0). This legacy version is critical for .NET Framework 4.0 (and above) applications that still rely on "Unmanaged" Oracle clients to connect to older databases or use features like User-Defined Types (UDTs). Direct Download and Installation Visit the Oracle Technology Network (OTN) website :
Oracle does not provide a standalone download for just the .dll. You must download the full Oracle Data Access Components (ODAC) package.
Official Source: Visit the Oracle .NET ODAC Downloads page. Since version 11.2.0.3.0 is older, check the ODAC 11.2 Release 4 (11.2.0.3.0) Install Instructions for archived links.
XCopy Version: For lighter deployments, use the ODAC 11.2.0.3.0 XCopy zip.
NuGet (Non-Official): While there is a NuGet package for Oracle.DataAccess.x86.4, it is a community-maintained package and may still require a local Oracle client to function. Key Technical Specifications Full Version ODAC Release 11.2 Release 4 (11.2.0.3.0) Target .NET Framework .NET Framework 4.0, 4.5, and above Processor Architecture x86 (32-bit) or x64 (64-bit) versions available Primary Dependency Requires Oracle Client (Instant, Runtime, or Full) Installation & Troubleshooting Steps 1. Registration in the GAC
If your application cannot find the DLL (error FileNotFoundException), it likely needs to be registered in the Global Assembly Cache (GAC). Use the OraProvCfg.exe tool located in your Oracle Home:
# Navigate to your ODP.NET bin folder cd C:\app\oracle\product\11.2.0\client_1\odp.net\bin\4 # Register the DLL OraProvCfg.exe /action:gac /providerpath:Oracle.DataAccess.dll Use code with caution. 2. Fixing Architecture Mismatch ODAC 11.2.0.3.0 Install Instructions - Oracle
The Patch at Midnight
Anya’s screen glowed in the dark of her cubicle. The deadline was 8:00 AM. The error log was screaming.
“System.Data.OracleClient requires Oracle client software version 8.1.7 or greater.”
She had migrated the legacy payroll system to a new server three hours ago. The old one, a wheezing dinosaur named NOSTROMO-1, had finally given up the ghost. The new machine— sleek, powerful, unnamed— was refusing to talk to the Oracle database.
The problem, as always, was the Data Access Layer.
She needed Oracle.DataAccess.dll, the managed provider. But not just any version. The old code, written by a wizard who had since retired to a cabin with no Wi-Fi, had hardcoded a dependency on a specific build: version 4.112.3.0.
"It's like a key cut for a specific lock," her mentor had told her years ago. "4.112.3.0 has a particular way of handling connection pooling and Unicode. 4.121.1.0? Close, but it will choke on the date format. 4.112.2.0? Missing a security patch for the cipher suite. It has to be exact."
The official Oracle website was a labyrinth of login portals, license agreements, and dropdown menus that led to "Oracle Data Access Components (ODAC) 12c Release 4." She downloaded it. She installed it. She navigated to C:\app\client\product\12.1.0\client_1\odp.net\bin\4. There it was. Version 4.121.2.0.
She stared at the numbers. 121 vs 112. A nine-number difference that felt like a canyon.
At 1:17 AM, desperation set in. She started Googling the exact phrase: "oracle.dataaccess.dll version 4.112.3.0 download"
The results were a graveyard. Dead links to Oracle’s old edelivery site. A sketchy forum post in Russian from 2014. A single, lonely Stack Overflow question with zero answers.
Then, a flicker. A cached page from a defunct IT solutions company in Wisconsin. The link was broken, but the cached text held a note:
“For legacy support of version 4.112.3.0, the required DLL is found only in ODAC 11.2 Release 6 (11.2.0.3.20). Do not use Release 7.”
Her heart hammered. ODAC 11.2. Release 6. That was ancient—pre-Windows 10, pre- containerization, pre-common sense.
She found it on Oracle’s "Archive" section, buried under three layers of "Legacy Products." The download was 800 megabytes. It took forty minutes on the office’s throttled guest Wi-Fi.
At 2:14 AM, she extracted the ZIP. She navigated to the odp.net folder. There, like a tiny metallic artifact in a dusty tomb, was the file.
Oracle.DataAccess.dll
Version 4.112.3.0
Size: 4.21 MB
She didn't copy it to the GAC. She didn't run an installer. She simply dropped the lone DLL into the bin folder of her new server’s application directory.
She opened a command prompt. Ran the test harness.
Connecting to PAYROLL_PROD... Success.
Running test query... 2,147 rows returned.
Disconnecting... Done.
Silence. No errors. No warnings.
At 2:21 AM, Anya leaned back. The payroll system would process at dawn. The DLL, a ghost from a bygone Oracle era, had bridged the gap.
She closed her laptop and walked to the window. Outside, the city slept, never knowing that its paychecks owed their existence to version 4.112.3.0— a piece of forgotten software, now safe in its new home, faithfully translating ones and zeroes until the end of time.
Older versions like 4.112.3.0 are not officially on NuGet.org. However, some unofficial or private NuGet feeds may host it. Use with caution – verify the checksum.
Even if the DLL loads, it cannot find the database. You must have a valid tnsnames.ora file or use EZConnect format:
string connStr = "Data Source=//hostname:1521/servicename;User Id=scott;Password=tiger;";
Cause: The DLL is missing, wrong bitness, or PATH issues.
Fix:
bin folder to PATH environment variable.cd C:\oracle\product\11.2.0\client_1\odac\bin
odp.net4\install.bat all %windir%\Microsoft.NET\Framework64\v4.0.30319 my_home