DLL

usoapi.dll

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

(77 Files Available)
Last Updated

Repository Analysis

Company
Microsoft Corporation
Product
Microsoft® Windows® Operating System
Description
Update Session Orchestrator API
Architecture
x86-64 (64 bit) x86 (32 bit) ARM64 ARM (Thumb 2)
Metadata Consensus
77/77 Files 100%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare differences between variants.

Frequently Asked Questions

What is usoapi.dll?

Metadata analysis shows usoapi.dll is a Dynamic Link Library (DLL) and is described as Update Session Orchestrator API .

DLL files (Dynamic Link Library) are used by Windows programs to share code and resources. It allows multiple applications to use the same functions, improving performance and reducing redundancy. Most errors occur because the DLL is missing, corrupted, or outdated.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 usoapi.dll errors?

Most errors involving usoapi.dll occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application or replacing the DLL resolves the issue. The steps below cover the most common ways to fix DLL errors.

  • Software DLLs: Fully un-install the application and then re-install the latest version. If you are not sure what software is causing problems, check available metadata for clues. If this does not solve your issue, you can try downloading and installing the DLL manually.
  • Windows DLLs: Make sure Windows is fully updated, then open Windows Terminal or PowerShell as an administrator. Repair the Windows component store so SFC can pull clean files DISM /Online /Cleanup-Image /RestoreHealth and then scan all system files sfc /scannow to automatically repair problems.
How do I install usoapi.dll?

To install usoapi.dll, place the DLL file in the same folder as the application’s .exe file. If you are not sure which version (32-bit or 64-bit) to use, you can safely install both. If you dont know the application or this does not work, install the DLL to the appropriate Windows system folder.

  • Software Install (Recommended): If known, place the DLL file next to the application’s .exe C:\path\to\exe\usoapi.dll.
  • 64-bit Install: Place 64-bit DLL files in the System32 folder, C:\Windows\System32\usoapi.dll
  • 32-bit Install: Place 32-bit DLL files in the SysWOW64 folder, C:\Windows\SysWOW64\usoapi.dll
How do I register usoapi.dll?

Most DLL files do not need registration, but some DLLs are COM components and must be registered to work correctly. If registration is required, open Windows Terminal or PowerShell as an administrator.

  • 64-Bit DLL: Register the DLL file regsvr32 "C:\path\to\usoapi.dll". (Drag a DLL to automatically fill the full path).
  • 32 Bit DLL: If you are registering a 32-bit DLL on 64-bit Windows, C:\Windows\SysWOW64\regsvr32 "C:\path\to\usoapi.dll".

Latest Releases

usoapi.dll
by Microsoft Corporation
for Microsoft® Windows® Operating System
Update Session Orchestrator API
NEW Version: 10.0.26100.8521 (WinBuild.160101.0800) Verified
Product Version: 10.0.26100.8521
Language: U.S. English (1033)
Uploaded: Jul 10, 2026   Size: 208KB
SHA256: 21390119b79818b7a8c0af521cebb304552d222667e1106d141a3fb36703838b
SHA1: 84d2296c47b3f17ce581283502cd3dc1da9630af
MD5: 0ab9cbcbf403c84ea3b83d76c5e5338b
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
usoapi.dll
by Microsoft Corporation
for Microsoft® Windows® Operating System
Update Session Orchestrator API
NEW Version: 10.0.26100.8521 (WinBuild.160101.0800) Verified
Product Version: 10.0.26100.8521
Language: U.S. English (1033)
Uploaded: Jul 10, 2026   Size: 100.5KB
SHA256: 8a82efaf99d14df5d78f834d03be69aa88f0939a6d569812e9e467b8294e2542
SHA1: b5efbd29884d9b6431895195968f3911a0f5bac0
MD5: 35f92adbefbdea93a90f91b654790f16
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
usoapi.dll
by Microsoft Corporation
for Microsoft® Windows® Operating System
Update Session Orchestrator API
Version: 10.0.26100.6725 (WinBuild.160101.0800) Verified
Product Version: 10.0.26100.6725
Language: U.S. English (1033)
Uploaded: Jul 2, 2026   Size: 196KB
SHA256: 0b1af07e6baab8dab1b53b5ae8b979f6771b10e12f15839b60171cbcfe3bf0e0
SHA1: 66c9dbf2c47ecf4c9b995e834ad39b29ca569370
MD5: 6ec4a568814d90c888413b3d1c53d5b6
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
usoapi.dll
by Microsoft Corporation
for Microsoft® Windows® Operating System
Update Session Orchestrator API
Version: 10.0.26100.6725 (WinBuild.160101.0800) Verified
Product Version: 10.0.26100.6725
Language: U.S. English (1033)
Uploaded: Jul 2, 2026   Size: 96.5KB
SHA256: 91a2682c4f065ab6e2e441d38a38007d3d4caa8d76020be5a94b8cbe1ee456fb
SHA1: 06c58544ed53e528cc7933e6086a42f9ddfd1686
MD5: 8d5e605c83200be31d5986b5f807fb76
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
usoapi.dll
by Microsoft Corporation
for Microsoft® Windows® Operating System
Update Session Orchestrator API
Version: 10.0.26100.3912 (WinBuild.160101.0800) Verified
Product Version: 10.0.26100.3912
Language: U.S. English (1033)
Uploaded: Sep 11, 2025   Size: 96KB
SHA256: 62f99727249421b0a0656b011a4a8a4b869c0134462db8d9580b64cbe4594dad
SHA1: e67e92cbedf223d500a7c6214835a17fd63885d4
MD5: 9872c505048b2276157b071e08a53cfd
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD