Description
Creation date: 15.07.2093 21:47:47
File version: 9.0.1125.51716
Antivirus scan: ✅ OK
Category: System
File size: 286.3 kb.
Architecture: 64-bit (x64)
✅ This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.
How to determine your system architecture: Press keys Win+R , enter symbols wmic os get osarchitecture , press Enter.
Digital file signature System.Collections.Concurrent.dll
Publisher: Microsoft Corporation
Issuer: Microsoft Code Signing PCA 2011
Encryption algorithm: SHA256
Time stamp: Oct 18 02:35:39 2025 GMT
The System.Collections.Concurrent.dll file is a Dynamic Link Library (DLL) in Windows. DLL files are essential for the operation of software applications, providing shared code and data that can be used by multiple programs simultaneously.
Issuer: Microsoft Code Signing PCA 2011
Encryption algorithm: SHA256
Time stamp: Oct 18 02:35:39 2025 GMT
MD5: 718bc68913e901635674366fd02651c1
SHA-1: db9ff0e5d68d65ef665307e5efcb1d8d5f445707
SHA-256: 6459b4d59fa07ad30fbaf6d27c9cacfb55545ef1671d08695061819da58944e8
SHA-1: db9ff0e5d68d65ef665307e5efcb1d8d5f445707
SHA-256: 6459b4d59fa07ad30fbaf6d27c9cacfb55545ef1671d08695061819da58944e8
Where it is Used
This specific DLL file is part of the .NET Framework, which is a free, cross-platform, open-source development software framework created by Microsoft. It likely supports concurrent collections and thread-safe data structures within applications developed using C# or other .NET languages.Errors Related to System.Collections.Concurrent.dll
Common errors associated with this file include:- "System.Collections.Concurrent.dll not found"
- "Missing System.Collections.Concurrent.dll"
- "Error loading System.Collections.Concurrent.dll"
File Security
Based on the provided information and typical practices, this DLL appears to be safe. It is associated with legitimate .NET Framework components and does not exhibit suspicious behavior patterns that could indicate malware or a virus.FAQ
How to fix System.Collections.Concurrent.dll missing error?
Download the correct file and copy it to the required program folder.
Is System.Collections.Concurrent.dll safe?
The original System.Collections.Concurrent.dll file was scanned by the antivirus, result: "OK".
Can I delete System.Collections.Concurrent.dll ?
You can move the file to a temporary folder and try to replace.
To fix the following errors:
System.Collections.Concurrent.dll was not found
The code execution cannot proceed because System.Collections.Concurrent.dll was not found
Failed to load System.Collections.Concurrent.dll
The procedure entry point ... could not be located in System.Collections.Concurrent.dll
1. Download links:
⬇️ System.Collections.Concurrent.dll 9.0.1125.51716 64-bit (x64) 286kb. 🛡️ 🔏 md5: 718bc68913e901635674366fd02651c1
⬇️ System.Collections.Concurrent.dll 8.0.1124.51707 64-bit (x64) 270kb. 🛡️🔏️ md5: b9b20837fc21f3b6c7dc96118f58a584
2b. Also try to copy to bin, lib folders.
2c. Try to copy System.Collections.Concurrent.dll C:\Program Files (x86)\Your program\
👉 Make backups of the files before proceeding with replacement.
How do I switch to the current Windows directory?
- Press and hold the key "win" on the keyboard and press the key "r" , then write %windir% and press the key Enter.
How to switch to the directory Program Files (x86) ?
- Press Win+R then enter %ProgramFiles(x86)% and after press Enter.
Advanced users only:
3. Copy into the folder C:\Windows\System32\
3b. Copy into the folder C:\Windows\SysWOW64\
How to Fix Errors
To address errors related to the System.Collections.Concurrent.dll file, consider these steps:- Reinstall the Program: Sometimes, simply reinstalling the application that uses this DLL can resolve the issue.
- Update Windows: Ensure your operating system is up-to-date. Updates often include fixes for issues with system files and frameworks.
- Manually Replace System.Collections.Concurrent.dll: If you encounter an error, download a trusted version of the file from Microsoft's official repository or another reputable source.