cscompui.dll - Analyze and How to Fix Errors

⚠️ Important Notice: Discover information about cscompui.dll, its function, and how to resolve related issues. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	64-bit (x64)	Compatible with only 64-bit Windows
Creation date	25.10.2019 06:22:23
File version	8.0.50727.9149
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	✅ Have signed	File have signature, it is original file.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	141.6 kb.	144968 bytes.

Hashes:

MD5: 18e6a4ece88057a0faaf15c14b696bad ✅
SHA-1: fac74696c58b31f711dcafaf41460a6d697ee5f9
SHA-256: 2d2fc8a75a0df82f27832ee82552b18c3713e8d6f06f75eaf0781f6f84973d1c
SHA-512: 310f86b711404d02807d5c0bfddc3f799cbecc91d3aa4706d3a171eb173653d3c20b24a5adc479ef723799eba4f269e92075097e70ee9c28fa469f932d557306

Digital file signature cscompui.dll ✅

✅ This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.

The file cscompui.dll is a component of the Microsoft .NET Framework Compiler. Errors usually happen because the file is corrupted, missing after an update, or blocked by antivirus software.

You can fix this issue without downloading anything by repairing the underlying software.

1. Run SFC and DISM Repairs

Windows has built-in tools to find and replace corrupted system files automatically.

• Open the Start Menu, type cmd, right-click Command Prompt, and select Run as administrator.
• Type sfc /scannow and press Enter. Wait for the scan to finish.
• Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
• Restart your computer.

2. Repair or Reinstall .NET Framework

Since this DLL belongs to .NET, repairing the framework will restore the missing file.

• Press Windows Key + R, type optionalfeatures, and press Enter.
• Uncheck the boxes for .NET Framework 3.5 and .NET Framework 4.8 (or your current version).
• Click OK and restart your computer to remove them.
• Reopen Windows Features, re-check those same boxes, and click OK to reinstall them.

3. Check Windows Update

An outdated operating system can cause version mismatches with .NET files.

• Open Settings (Windows Key + I).
• Go to Update & Security (or Windows Update).
• Click Check for updates and install all pending updates.
• Restart your system.

4. Check Antivirus Quarantine

Sometimes antivirus programs mistakenly flag this DLL as a threat and isolate it.

• Open your antivirus software (or Windows Security).
• Look for the Protection History or Quarantine section.
• Check if cscompui.dll is listed there.
• If found, select it and click Restore.

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📊 Diagnostics Tool: Verify Your cscompui.dll File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Other versions:
️ cscompui.dll 3.5.30729.9141 32-bit (x86) | ️ cscompui.dll other
Microsoft Corporation