Operating System
Need the Microsoft System CLR Types for SQL Server 2012 WSUS downloads? These NuGet packages are essential for offline updates but tricky to source correctly.
Deploying SQL Server 2012 updates via WSUS often requires offline installation packages—but finding the right version-specific NuGet packages can derail your rollout without proper mapping. Below, I’ll show you where to get them legally, how to verify compatibility, and what to watch for when third-party mirrors go wrong.
How to find correct SQL Server 2012 CLR Types NuGet packages for offline WSUS deployment
When deploying SQL Server 2012 updates via WSUS, you'll often need the Microsoft System CLR Types NuGet packages—but not all versions work. The wrong package can break your deployment, causing errors like "Assembly not found" or "Version mismatch."
I've spent years troubleshooting these issues, and I'll show you how to find the exact version-specific packages you need for SQL Server 2012 SP4/SP3/SP2.
Microsoft doesn't always make these packages easy to find, especially for older versions. You’ll need to cross-reference SQL Server 2012 service packs with the correct NuGet package versions.
For example, SQL Server 2012 SP4 requires Microsoft.SqlServer.Types 11.0.5058.0, while SP3 needs 11.0.3366.0. Getting this wrong can lead to failed deployments or compatibility issues with .NET applications.
Here’s my step-by-step guide to locating the right packages, including direct download links and verification methods using PowerShell. I’ll also cover how to validate your downloads to ensure they match your SQL Server 2012 SP level.
Step-by-Step Guide to Finding SQL Server 2012 CLR Types NuGet Packages
Run this PowerShell command to check your installed SQL Server 2012 SP level:
$instance = New-Object ('Microsoft.SqlServer.Management.Smo.Server') "YourServerName"
$instance.Version
Note the SP level (e.g., SP4, SP3, SP2) for the correct package.
Use this table to match your SQL Server 2012 SP level to the correct Microsoft.SqlServer.Types NuGet package:
| SQL Server 2012 SP Level | NuGet Package Version | Download Link |
|---|---|---|
| SP4 | 11.0.5058.0 | Direct Download |
| SP3 | 11.0.3366.0 | Direct Download |
| SP2 | 11.0.3336.0 | Direct Download |
Download the NuGet package from the official NuGet.org links above. Avoid third-party mirrors, as they may contain malware or outdated versions.
Use this PowerShell one-liner to download directly:
Save-Module -Name Microsoft.SqlServer.Types -Repository PSGallery -Path C:\Temp\SQLCLRTypes -Force
After downloading, verify the assembly version matches your SQL Server 2012 SP level using this command:
[System.Reflection.Assembly]::LoadFile("C:\Temp\SQLCLRTypes\Microsoft.SqlServer.Types.dll").GetName().Version
This should return the exact version (e.g., 11.0.5058.0
Matching the right Microsoft.SqlServer.Types NuGet package to your SQL Server 2012 SP level prevents deployment failures during WSUS updates. Using the wrong version—like 12.0.0 instead of 11.0.0—can trigger assembly loading errors or silent corruption. I’ve seen admins waste hours troubleshooting issues that stemmed from mismatched dependencies. SQL Server 2012’s CLR integration relies on these NuGet packages for offline WSUS deployments. The table below maps package versions to SQL Server 2012 SP levels, including critical compatibility notes. Always verify your SQL Server instance version before downloading. comparison-table
Always cross-reference your SQL Server version with the NuGet package version to avoid deployment blockers. For example, SQL Server 2012 SP3 requires 11.0.0, but SP4 demands 12.0.0. I recommend using PowerShell to verify your installed version before downloading: Pro tip: Bookmark the Microsoft Update Catalog for direct downloads. Third-party mirrors often host outdated or malicious versions—stick to official sources to avoid security risks or corrupted assemblies. If you’re deploying via WSUS, test the package in a staging environment first. Mismatched versions can cause silent failures until users attempt to run CLR-dependent queries, leading to unexpected downtime.Version-specific NuGet package comparison for SQL Server 2012 CLR Types
NuGet Package Version
SQL Server 2012 SP Level
CLR Types Compatibility
Common Pitfalls
11.0.0
SP1-SP3
Fully compatible; required for CLR integration
Fails if SP4 installed; use 12.0.0 instead
12.0.0
SP4
Required for SP4; includes security updates
Breaks older SP3 deployments; check SQL Server version first
11.0.2412.0
SP3 (Cumulative Update 12)
Hotfix rollup; critical for CU12 environments
Missing in some WSUS catalogs; download from Microsoft Update Catalog
Get-ItemProperty HKLM:\Software\Microsoft\MSSQLServer\Setup -Name Edition, Version | Select-Object Edition, Version will confirm your SQL Server edition and build number, ensuring you grab the correct package.