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DLL

Microsoft.Bcl.AsyncInterfaces.dll

Download and install Microsoft.Bcl.AsyncInterfaces.dll to fix missing or corrupted DLL errors.

(235 Files Available)
Last Updated
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Repository Analysis

Company
Microsoft Corporation
Product
Microsoft® .NET
Description
Microsoft.Bcl.AsyncInterfaces
Architecture
x86 (32 bit) x86-64 (64 bit)
Metadata Consensus
167/235 Files 71.1%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare variant differences.

Companies

  • Microsoft Corporation 197
  • Unknown 38

Products

  • Microsoft® .NET 167
  • Microsoft® .NET Core 30
  • Unknown 38

Descriptions

  • Microsoft.Bcl.AsyncInterfaces 197
  • Unknown 38

Frequently Asked Questions

What is Microsoft.Bcl.AsyncInterfaces.dll?

Metadata analysis shows Microsoft.Bcl.AsyncInterfaces.dll is a Dynamic Link Library (DLL) developed by Microsoft Corporation for Microsoft® .NET and is described as “Microsoft.Bcl.AsyncInterfaces” .

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 Most errors occur because the DLL is missing, corrupted, or outdated.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
Microsoft.Bcl.AsyncInterfaces.dll
by Microsoft Corporation
for Microsoft® .NET
Microsoft.Bcl.AsyncInterfaces
Provides the IAsyncEnumerable<T> and IAsyncDisposable interfaces and helper types for .NET Standard 2.0. This package is not required starting with .NET Standard 2.1 and .NET Core 3.0.
Version: 9.0.24.52809
Product Version: 9.0.0+9d5a6a9aa463d6d10b0b0ba6d5982cc82f363dc3
Language: - (0)
Uploaded: Aug 24, 2026   Size: 37.5KB
SHA256: 7870598ae9faef4edaec62ead9340ec01366c598f6b7c9d35ddc71e34b81313b
SHA1: bcb4bd0cf9f7de46736935bc1b9586eb1a7d50a9
MD5: ba6d51549455d232e33434087a81fc83
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
Microsoft.Bcl.AsyncInterfaces.dll
by Microsoft Corporation
for Microsoft® .NET
Microsoft.Bcl.AsyncInterfaces
Provides the IAsyncEnumerable<T> and IAsyncDisposable interfaces and helper types for .NET Standard 2.0. This package is not required starting with .NET Standard 2.1 and .NET Core 3.0. Commonly Used Types: System.IAsyncDisposable System.Collections.Generic.IAsyncEnumerable System.Collections.Generic.IAsyncEnumerator
Version: 8.0.23.53103
Product Version: 8.0.0+5535e31a712343a63f5d7d796cd874e563e5ac14
Language: - (0)
Uploaded: Aug 22, 2026   Size: 26.1KB
SHA256: 3cb3467fd93eec86f1725ec7d72f2690f1ff45cbc4cced30db164d44308764d1
SHA1: 8e5bd82c02dd60ce09f24e4ef7c03614afa1181b
MD5: 465e88555b9967ef0b68ecd7b2371a0f
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
Microsoft.Bcl.AsyncInterfaces.dll
by Microsoft Corporation
for Microsoft® .NET
Microsoft.Bcl.AsyncInterfaces
Provides the IAsyncEnumerable<T> and IAsyncDisposable interfaces and helper types for .NET Standard 2.0. This package is not required starting with .NET Standard 2.1 and .NET Core 3.0.
Version: 10.0.25.52411
Product Version: 10.0.0+b0f34d51fccc69fd334253924abd8d6853fad7aa
Language: - (0)
Uploaded: Aug 20, 2026   Size: 19.8KB
SHA256: 0108e3141daa64a82b7411cc98d6664e169d41e637e4a5af2d19e926733efdcb
SHA1: 1c29e338abd58fe5d7a6f380b25ace50421ef469
MD5: 5633f014a2e39ed9a3b9b2a6828a346d
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
Microsoft.Bcl.AsyncInterfaces.dll
by Microsoft Corporation
for Microsoft® .NET
Microsoft.Bcl.AsyncInterfaces
Provides the IAsyncEnumerable<T> and IAsyncDisposable interfaces and helper types for .NET Standard 2.0. This package is not required starting with .NET Standard 2.1 and .NET Core 3.0. Commonly Used Types: System.IAsyncDisposable System.Collections.Generic.IAsyncEnumerable System.Collections.Generic.IAsyncEnumerator
Version: 8.0.23.53103
Product Version: 8.0.0+5535e31a712343a63f5d7d796cd874e563e5ac14
Language: - (0)
Uploaded: Aug 19, 2026   Size: 35.7KB
SHA256: b6b270500385360c5ac5d77336522c4a46b79224d36fbdac172049a00c876f09
SHA1: 3ef32b3e242f608709ca25a83004b504d30273d4
MD5: 547d2dc105a73ecd5608f4ee72976a37
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
Microsoft.Bcl.AsyncInterfaces.dll
by Microsoft Corporation
for Microsoft® .NET
Microsoft.Bcl.AsyncInterfaces
Provides the IAsyncEnumerable<T> and IAsyncDisposable interfaces and helper types for .NET Standard 2.0. This package is not required starting with .NET Standard 2.1 and .NET Core 3.0.
Version: 10.0.125.57005
Product Version: 10.0.1+fad253f51b461736dfd3cd9c15977bb7493becef
Language: - (0)
Uploaded: Aug 19, 2026   Size: 20.3KB
SHA256: c827f50c808eaa694788a17b3d0db2742cf9eeaa15ce98a1a9393f9899fec1e4
SHA1: 9ceb4809b879602305eb261880ef3538ea6ddded
MD5: 50d021e6d48ff1825493c831c17d805c
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD