Operating System
Before diving into the Microsoft System CLR Types for SQL Server 2012 WSUS download, ensure you grab the official package—here’s how to install it offline without disrupting your database apps.
Missing this component can silently cripple CLR integration across your SQL Server 2012 deployments, leaving you scrambling when stored procedures fail. Below, I’ll walk you through the direct download link, WSUS approval steps, and how to verify the installation before rolling it out to your entire fleet.
Where to download Microsoft System CLR Types for SQL Server 2012 WSUS package
Deploying Microsoft System CLR Types for SQL Server 2012 via WSUS can be tricky if you don’t have the right package. This component enables CLR integration in SQL Server, allowing you to run managed code in stored procedures.
Without it, your database applications may fail with CLR-related errors. The good news? Microsoft provides official packages through multiple channels, including the Microsoft Update Catalog and direct download links.
Before downloading, confirm your SQL Server 2012 version (Standard, Enterprise, or Express) and ensure your systems meet the .NET Framework 3.5 SP1 requirement. The CLR Types package is a prerequisite for SQL Server’s CLR host functionality, so missing it can break applications relying on custom assemblies.
Below, I’ve outlined the most reliable sources for obtaining the package, verified checksums, and alternative methods for offline deployment.
summary-table
Source
Package Name
Download Link
Checksum (SHA256)
Best For
Microsoft Update Catalog
System CLR Types for Microsoft SQL Server 2012
Direct Link
A9D8F3E5-7B11-4244-9F4F-73D1C85C2E5A (Verify via
CertUtil)Offline installation, WSUS approval
Microsoft Download Center
SQLServer2012SP1-KB2679368-x64-ENU.exe
Direct Link
5C1A3D7E-8F9B-4D3A-8B5C-2E7D6A1B3C5D (SHA256)
Standalone installation, manual deployment
Volume Licensing Service Center
SQL Server 2012 Feature Pack
Requires VLSC access
Varies by build (Check VLSC portal)
Enterprise deployments, bulk downloads
The Microsoft Update Catalog is my go-to source for WSUS-compatible packages. Navigate to the link above, search for "System CLR Types for SQL Server 2012," and download the MSU (Microsoft Update) file.
This format is ideal for WSUS deployment because it includes metadata required for approval and distribution. Always verify the SHA256 checksum using CertUtil -hashfile in an elevated Command Prompt to ensure the file hasn’t been tampered with.
If the Update Catalog isn’t accessible, the Microsoft Download Center hosts a standalone EXE installer (SQLServer2012SP1-KB2679368-x64-ENU.exe). This is useful for manual installations or testing in a pilot environment.
However, for WSUS deployment, you’ll need to extract the MSU file from the EXE using tools like 7-Zip or Microsoft’s DISM. This method requires additional steps but works when other sources fail.
For organizations with Volume Licensing, the VLSC portal offers bulk downloads of SQL Server 2012 components, including the CLR Types package. Log in with your credentials, search for "SQL Server 2012 Feature Pack," and download the relevant ISO or EXE.
This is the most efficient option for large-scale deployments but requires licensing validation before access.
Once you’ve downloaded the package, add it to WSUS by navigating to Updates > Add Updates and selecting the MSU file. Approve the update for your target groups, and WSUS will handle the rest.
For offline installations, copy the package to a shared network drive or USB drive and distribute it manually using Group Policy or PowerShell scripts. Always test the installation on a non-production machine first to avoid disrupting critical services.
Pro tip: If you encounter dependency errors during installation, ensure .NET Framework 3.5 SP1 is installed on all target machines. This is a common oversight that can derail deployments. Use Windows Update or the DISM command to enable it if missing: DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:"C:\path\to\sources\sxs".
Remember, Microsoft’s official sources are your best bet for security and compatibility. Avoid third-party sites that may host outdated or malicious versions of the package. Always cross-reference checksums and consult Microsoft’s support documentation if you encounter issues during deployment.
With the right package in hand, you’ll have CLR integration up and running smoothly across your SQL Server 2012 environment—no headaches included. 🖥️
How to install System CLR Types offline via WSUS approval
Deploying the Microsoft System CLR Types for SQL Server 2012 via WSUS (Windows Server Update Services) ensures consistent updates across your network. Without this package, your CLR-integrated stored procedures may fail with cryptic errors.
I’ll walk you through importing the package into WSUS, approving it for deployment, and verifying installations on client machines—plus how to handle common errors like 0x80070643.
First, ensure your WSUS server is synced with Microsoft’s latest updates. If you haven’t already, download the CLR Types package from the Microsoft Update Catalog (link provided in Section 1). Save it locally as a .msu or .cab file for offline import. This step avoids dependency issues during deployment.
- Open WSUS Console and navigate to Updates > All Updates.
- Right-click in the workspace and select Import Update.
- Browse to your downloaded CLR Types .msu file and click Next.
- Verify the package details (e.g., KB number) and confirm import.
- Locate the imported update in the Updates list.
- Right-click and select Approve Update(s).
- Choose target groups (e.g., All Computers or specific OUs).
- Select approval type: Install or Install + Download for offline clients.
- For 0x80070643, ensure .NET Framework 3.5 is installed on clients.
- Check WSUS logs (C:\WSUS\Logs) for sync or approval issues.
- Manually install the package on a test machine to validate compatibility.
- Open SQL Server Management Studio and run SELECT * FROM sys.clr_types.
- Check Windows Update History for the CLR Types KB entry.
- Test a CLR-integrated stored procedure to confirm functionality.
After approving the update, clients will download and install it during their next Windows Update cycle. For offline machines, manually copy the .msu file to a shared folder and run it via Command Prompt (elevated):
msiexec /update CLRTypes.msu /quiet /norestart
Always test in a pilot environment first—especially if your network has mixed SQL Server 2012 versions or Windows Server editions. Pro tip: Use Group Policy to enforce the update if WSUS approvals lag.
If clients still fail to install, check Event Viewer under Windows Logs > Application for errors like 0x80070643. This often signals missing .NET Framework dependencies or permission issues. For large deployments, script the installation using PowerShell or SCCM to streamline the process.