# 8.3 and MS SQL Server Integrated Authentication

**URL:** <https://forum.inductiveautomation.com/t/8-3-and-ms-sql-server-integrated-authentication/110334>\
**Category:** Ignition 8.3 Early Access\
**Created:** [September 2, 2025, 3:29pm UTC](https://forum.inductiveautomation.com/t/8-3-and-ms-sql-server-integrated-authentication/110334 "2025-09-02T15:29:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![diamond](https://avatars.discourse-cdn.com/v4/letter/d/e79b87/32.png) [@diamond](https://forum.inductiveautomation.com/u/diamond)\
**Post date:** [September 2, 2025, 3:29pm UTC](https://forum.inductiveautomation.com/t/8-3-and-ms-sql-server-integrated-authentication/110334/1 "2025-09-02T15:29:14Z")

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Hello,

We’ve just installed 8.3 and started connecting to some MSSQL databases. Ignition reported a missing `mssql-jdbc_auth-9.4.0.x64.dll` file, for Windows Integrated Authentication to work.

Is this expected? I thought MSSQL drivers came bundled out of the box in 8.3.

Thanks!

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [September 2, 2025, 3:34pm UTC](https://forum.inductiveautomation.com/t/8-3-and-ms-sql-server-integrated-authentication/110334/2 "2025-09-02T15:34:18Z")

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The auth DLL has never been included AFAIK.

You need to put it in the `$IGNITION/lib` directory like in previous versions.