Ssis-835 Now

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SSIS-835 Error Report

Error Description: The SSIS-835 error is a common issue encountered in SQL Server Integration Services (SSIS) that typically occurs when there is a mismatch or inconsistency in the version of the SQL Server client library used to connect to a data source.

Error Message: "The EXECUTE permission was denied on the object 'sp_describe_unhandled_exception', database 'msdb', schema 'sys'. (Microsoft OLE DB Provider for SQL Server)". SSIS-835

Causes:

Troubleshooting Steps:

Published: April 10 2026

TL;DR – SSIS‑835 is the “Data Flow task failed because the source component returned an error: “The OLE DB provider “Microsoft.ACE.OLEDB.12.0” reported an error.”* error that typically pops up when you try to read from or write to an ACE/Jet‑based file (Excel, Access, Text) inside an SSIS package that is running on a SQL Server 2022+ or Azure‑SSISIR environment. The root cause is a mismatch between the 32‑bit ACE driver and the 32‑bit/64‑bit execution mode of the SSIS runtime. The fix is to standardize on the 64‑bit ACE driver, switch the package to 32‑bit mode, or replace the ACE source/destination with a more robust alternative (e.g., CSV → Flat File Source, Power Query, or Azure Data Factory).

Below you’ll find a deep‑dive into the error, the underlying mechanics, common scenarios that trigger it, and a step‑by‑step guide to diagnose and resolve it. The post also covers preventive best practices you can bake into your CI/CD pipeline to keep SSIS‑835 from ever resurfacing.

| # | Scenario | Why It Happens | |---|----------|----------------| | 1️⃣ | Dev → Prod migration – The package was built on a dev laptop with the 32‑bit ACE driver, then deployed to a production SSISDB that only has the 64‑bit driver. | Provider cannot be instantiated. | | 2️⃣ | Azure Data Factory (ADF) → Azure‑SSISIR – The SSISIR is 64‑bit only, but the package still references Microsoft.ACE.OLEDB.12.0. | Same mismatch, plus no easy “Run in 32‑bit mode”. | | 3️⃣ | SQL Server 2022 on Windows Server 2022 – You installed the Access Database Engine 2016 Redistributable (32‑bit) to satisfy another app. The 64‑bit driver is missing. | SSIS runs 64‑bit → driver missing. | | 4️⃣ | File path / permission issue – The Excel file lives on a network share that the SSIS service account can’t reach. The provider throws a generic COM error that appears as SSIS‑835. | Not a driver issue, but the error mask looks identical. | | 5️⃣ | Mixed‑mode packages – Some data flows use ACE, others use ODBC. The package runs with Run64BitRuntime = False in Visual Studio, but the deployment uses the default 64‑bit runtime. | Inconsistent execution mode. | Please provide more details if you need a

Unlike typical releases where the final scene is purely mechanical, SSIS-835 ends on a melancholic, ambiguous note. The aftermath focuses on the cost of the encounter, leaving the viewer with lingering questions about the characters’ future. It’s haunting and memorable.

The SSIS-835 error can arise from a variety of issues within SSIS packages. Systematic troubleshooting and a thorough understanding of package configurations and environments are key to resolving these errors efficiently.