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DLL

instapi170.dll

Download and install instapi170.dll to fix missing or corrupted DLL errors.

(3 Files Available)
Last Updated
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Repository Analysis

Company
Microsoft Corporation
Product
Microsoft SQL Server
Description
SQL Server Instance API DLL
Architecture
x86-64 (64 bit)
Metadata Consensus
3/3 Files 100%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare variant differences.

Companies

  • Microsoft Corporation 3

Products

  • Microsoft SQL Server 3

Descriptions

  • SQL Server Instance API DLL 3

Frequently Asked Questions

What is instapi170.dll?

Metadata analysis shows instapi170.dll is a Dynamic Link Library (DLL) developed by Microsoft Corporation for Microsoft SQL Server and is described as “SQL Server Instance API DLL” .

DLL files (Dynamic Link Libraries) are shared core modules used by Windows programs to run efficiently without duplicating code. Most errors occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application, repairing Windows, or replacing the DLL resolves the issue.

How do I fix missing DLL errors?
1

Software Fix

Fully uninstall and reinstall the program causing the error. If you are not sure what program is broken, look at the available file metadata above for hints. If a clean reinstall fails, download and install the DLL file manually.

2

Windows System Fix

Make sure Windows is fully updated. To repair system files automatically, right-click the Start menu, open PowerShell (Admin), and run these two commands in order:

Step A DISM /Online /Cleanup-Image /RestoreHealth
Step B sfc /scannow
How do I install DLL files?
1

Download & Extract

Download the file, right-click the folder, and extract all files to your computer.

2

Install the .DLL

Move the extracted DLL file into the root folder of the software that is giving you the error (where its .exe file is located), or place it in the system directory below:

32-bit → C:\Windows\SysWOW64
64-bit → C:\Windows\System32
3

Restart the Program

Close and reopen the program or game so Windows can look for and load the new DLL file.

How do I register DLL files?

Most DLL files do not need registration. However, if your file is a COM component and requires explicit system registration, follow these steps:

1

Open Terminal

Right-click the Start menu and open PowerShell (Admin) or Command Prompt (Admin).

2

Run Command

Type the command below for your file type and press Enter. You can drag and drop the DLL file directly into the terminal window to fill its path automatically.

64-bit regsvr32 "C:\path\to\filename.dll"
32-bit C:\Windows\SysWOW64\regsvr32 "C:\path\to\filename.dll"

Latest Releases

NEW Verified
instapi170.dll
by Microsoft Corporation
for Microsoft SQL Server
SQL Server Instance API DLL
SQL
Version: 2025.0170.9113.00 ((DS_Main_Dev).260604-0427)
Product Version: 17.0.9113.0
Language: U.S. English (1033)
Uploaded: Aug 22, 2026   Size: 105.8KB
SHA256: 73595367b0ce7ab9f310cb2569c3772dec6460a824efccf0835d7fded0a7b164
SHA1: 0597041537f4196829dff65f306637ca52d2492c
MD5: 00d4fa4a20789c5bda4dd81bf463b678
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
NEW Verified
instapi170.dll
by Microsoft Corporation
for Microsoft SQL Server
SQL Server Instance API DLL
SQL
Version: 2025.0170.4025.03 ((sql2025_rtm_qfe-cu3).260225-2224)
Product Version: 17.0.4025.3
Language: U.S. English (1033)
Uploaded: Aug 18, 2026   Size: 106KB
SHA256: 88bbb8d8f84f8a64c6bfbbb1ccbb12303830d356e6bb9be6f98fcbd93ac28942
SHA1: 53aaa91050e0111e0d1aeb399978846431540d0b
MD5: 0379e10af2dcad05046978e26eb340ec
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
Verified
instapi170.dll
by Microsoft Corporation
for Microsoft SQL Server
SQL Server Instance API DLL
SQL
Version: 2025.0170.0800.03 ((sql2025_ctp21).250612-2104)
Product Version: 17.0.800.3
Language: U.S. English (1033)
Uploaded: Sep 16, 2025   Size: 106KB
SHA256: e687cc707ca00bfe098670b15e49a659c92ba11f7d7c0cd062b3160225ff0c4b
SHA1: a872acc19b72630a9ab842b30ed40e758feb99db
MD5: d0ac33129ccb0f34f15599565f3c10c2
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD