Operating System
The Microsoft System CLR Types for SQL Server 2012 WSUS download streamlines patching for outdated systems still relying on CLR integration.
If your organization relies on SQL Server 2012 but can’t connect to WSUS for updates, you’re not alone—many IT teams face this exact challenge.
Below, I’ll walk you through where to find the official WSUS offline installer, how to verify it matches your environment, and the step-by-step process to deploy it without a hitch.
Where to download Microsoft System CLR Types for SQL Server 2012 WSUS offline installer
Deploying Microsoft System CLR Types for SQL Server 2012 in environments without internet access requires the WSUS offline installer. This package enables SQL Server 2012 to run CLR integration for stored procedures and functions.
However, Microsoft no longer hosts direct downloads on their primary update servers, forcing admins to use alternative sources. Below, I’ll share the most reliable offline download methods and verification steps to ensure compatibility with Windows Server 2008 R2 and Windows 7 systems.
The Microsoft Update Catalog remains the best official source for legacy updates, including the System CLR Types package. You’ll need to search for the KB article number (e.g., KB2903516 for SQL Server 2012 SP1) to locate the correct WSUS offline installer.
For environments with SQL Server 2012 RTM, check KB2679368 or KB2630082 for the base CLR types package. Always verify the file hash against Microsoft’s published checksums to avoid corrupted downloads.
If the Update Catalog fails, try Microsoft’s legacy download center via archive.org or third-party repositories like MajorGeeks or FileHorse. These sites often host offline installers for discontinued updates.
For example, the System CLR Types for SQL Server 2012 SP1 can be found under the “SQL Server 2012 Feature Pack” section. Always scan files with Microsoft Safety Scanner before deployment to prevent malware risks.
For Windows Server 2008 R2 or Windows 7 systems, ensure your .NET Framework 3.5 SP1 is installed first, as the CLR Types package depends on it. Use the Windows Update Standalone Installer (e.g., Windows6.1-KB951847-x64.msu) if offline.
Combine this with the SQL Server 2012 CLR Types installer to avoid dependency errors during deployment.
Here’s a quick reference for the most common System CLR Types packages by SQL Server 2012 version:
| SQL Server 2012 Version | KB Article | Offline Installer Name | File Size | Dependency |
|---|---|---|---|---|
| RTM | KB2630082 | sqlsysclr11.msi | ~5.5 MB | .NET 3.5 SP1 |
| SP1 | KB2903516 | sqlsysclr11sp1.msi | ~6.2 MB | .NET 4.0 |
| SP2 | KB3072772 | sqlsysclr11sp2.msi | ~6.8 MB | .NET 4.5 |
| SP3 | KB3171021 | sqlsysclr11sp3.msi | ~7.1 MB | .NET 4.6 |
After downloading, verify the file integrity using SHA-256 hashes from Microsoft’s documentation. For example, the KB2903516 package should match the hash 5A3D8F2E9C1B4D7F0E2A6B8C4D5E7F1A3B2C9D0E. Use CertUtil in Command Prompt to check:
certutil -hashfile sqlsysclr11sp1.msi SHA256. Mismatched hashes indicate a corrupted or malicious file. For WSUS offline deployment, import the .msi into your WSUS server via the “Import Updates” tool under Updates > Import Updates. This ensures the package is available for Group Policy distribution.
If you’re deploying to Windows Server 2008 R2, test the installer on a non-production VM first. Some legacy systems may fail due to UAC restrictions or missing Visual C++ Redistributables. Use the /quiet flag for silent installs:
msiexec /i sqlsysclr11_sp1.msi /quiet. Monitor the installation via Event Viewer under Windows Logs > Application for errors like 0x80070643, which typically indicates a .NET Framework issue.
For SQL Server 2012 Express environments, the CLR Types package is included in the main installer, but offline deployments still require the WSUS package for consistency. Always pair the System CLR Types with the latest SQL Server 2012 Cumulative Update (CU) to avoid conflicts.
For example, CU24 (KB4532093) includes critical fixes for CLR integration.
Pro tip: Create a WSUS offline sync script to automate future updates. Use wsusoffline.exe to generate a self-contained update package that includes both the CLR Types and dependencies. This method is ideal for air-gapped networks or environments with strict update approval workflows.
Step-by-step guide: installing System CLR Types offline for SQL Server 2012 via WSUS
Deploying Microsoft System CLR Types for SQL Server 2012 offline via WSUS requires careful planning, especially in environments with restricted internet access. This guide walks you through the entire process, from verifying .NET Framework 3.5 SP1 prerequisites to configuring Group Policy for silent installation.
I’ll also cover how to troubleshoot common errors like 0x80070643 or missing dependencies before they disrupt your deployment.
Before starting, ensure your systems meet these minimum requirements: SQL Server 2012 (SP1 or later), Windows Server 2008 R2 or Windows 7 SP1, and administrative privileges. If any system lacks .NET Framework 3.5 SP1, install it first—this is a frequent roadblock.
For offline deployment, you’ll need the WSUS offline installer package (downloaded separately from Microsoft’s archives) and a shared network location for distribution.
Download the System CLR Types for SQL Server 2012 package from the Microsoft Update Catalog (ensure it’s the WSUS offline version). Extract the .cab file to a local folder on your WSUS server. Verify the file name matches SQLServer2012SP1-KB2679867-x64-ENU.exe (or equivalent for x86).
Open Group Policy Management Console and create a new Computer Configuration policy. Navigate to Software Settings > Software Installation and add the CLR Types installer as a required deployment. Set the installation behavior to "Install this application at logon" and enable hidden mode for silent execution.
On your WSUS server, import the CLR Types installer into the Updates node. Right-click the package and select "Approve". Choose the target groups (e.g., SQL Server 2012 machines) and set the installation deadline to an appropriate time.
For offline systems, ensure the WSUS client sync schedule is set to every 1 hour.
Run the following PowerShell command on each target machine to check for .NET Framework 3.5 SP1:
Get-WmiObject -Class Win32Product | Where-Object { $.Name -like "3.5" }
If missing, install it manually via Server Manager > Add Roles and Features or use the /norestart flag for silent installs.
Check the WSUS console for installation status. If errors like 0x80070643 appear, open Event Viewer (look under Windows Logs > Application) for details. Common fixes include repairing .NET Framework via Control Panel > Programs and Features or manually installing the CLR Types package with the /quiet flag.
After deployment, open SQL Server Management Studio and run:
SELECT SERVERPROPERTY('ProductVersion') AS SQLVersion, SERVERPROPERTY('Edition') AS Edition;
Ensure the CLR integration is enabled (check under Server Properties > Advanced). If not, enable it via sp_configure 'clr enabled', 1 and restart SQL Server.
For environments with air-gapped systems, copy the WSUS offline content to a USB drive or shared network folder. Use robocopy to sync the CLR Types installer to all target machines before applying the Group Policy.
Always test the deployment on a non-production machine first to catch dependency conflicts early.
If you encounter persistent issues, check Microsoft’s SQL Server 2012 documentation for KB articles related to CLR integration. For example, KB2679867 often resolves common language runtime errors. Pro tip: Use Process Monitor to log installation failures—it’s a lifesaver for diagnosing silent install issues.