How to Repair Aspnet_perf.dll? Download Now

Sometimes Windows system displays error messages regarding corrupted or missing Aspnet_perf.dll files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent Aspnet_perf.dll file can therefore effect in failed execution of the started process.

Aspnet_perf.dll file Dynamic Link Library. The file was developed by Microsoft for use with Windows software. Here you will find detailed information about the file and instructions how to proceed in the event of Aspnet_perf.dll related errors on your device. You can also download Aspnet_perf.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista

File info

General information
Filename Aspnet_perf.dll
File extension DLL
Type Dynamic Link Library
Description Dynamic Link Library
Software
Program Windows 10
Software Windows
Author Microsoft
Software version 10
Details
File size 42672
Oldest file 2009-04-11
Latest file 2017-03-18
Aspnet_perf.dll

There are various types of errors related to Aspnet_perf.dll file. Aspnet_perf.dll file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to Aspnet_perf.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

  • Aspnet_perf.dll is corrupted
  • Aspnet_perf.dll cannot be located
  • Runtime Error - Aspnet_perf.dll
  • Aspnet_perf.dll file error
  • Aspnet_perf.dll file cannot be loaded. Module was not found
  • cannot register Aspnet_perf.dll file:
  • Aspnet_perf.dll file could not be loaded
  • Aspnet_perf.dll file doesn't exist

Aspnet_perf.dll

Error

Application could not be started because Aspnet_perf.dll file is missing. Reinstall the application to solve the problem.

OK

Problems related to Aspnet_perf.dll can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing Aspnet_perf.dll file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

Aspnet_perf.dll file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with Aspnet_perf.dll file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to Aspnet_perf.dll file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of Aspnet_perf.dll or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to Aspnet_perf.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the Aspnet_perf.dll file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the Aspnet_perf.dll file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the Aspnet_perf.dll file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace Aspnet_perf.dll file

The last solution is to manually download and replace Aspnet_perf.dll file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded Aspnet_perf.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of Aspnet_perf.dll file example directory paths.

  • Windows 10: C:\Windows\Microsoft.NET\Framework\v4.0.30319\
  • Windows 8.1: C:\Windows\Microsoft.NET\Framework\v4.0.30319\
  • Windows 8: 1: C:\Windows\Microsoft.NET\Framework\v4.0.30319\
  • Windows 7: C:\Windows\Microsoft.NET\Framework64\v2.0.50727\
  • Windows 7: C:\Windows\Microsoft.NET\Framework64\v2.0.50727\
  • Windows Vista: ---
  • Windows Vista: ---

If the steps did not solve your Aspnet_perf.dll file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename Aspnet_perf.dll
System Windows 10
File size 42672 bytes
Date -0001-11-30
File details
MD5 28f7cbfe4e1b7b079cde97a4f759a04f
SHA1 ea7f0a8c8149661eb711b6ed062749a918b9fd90
SHA256 f2eb4bac3342b51a6789878bc83d03517d98ca2a148c2f2cd7caab2eaf3170b1
CRC32 594adc91
Example file location C:\Windows\Microsoft.NET\Framework\v4.0.30319\
Filename Aspnet_perf.dll
System Windows 8.1
File size 41560 bytes
Date -0001-11-30
File details
MD5 31920e5a141b27c60612b843007f9eed
SHA1 71bc8e7ba3281b4cd75fb6d032b6ad149ba8d532
SHA256 6161771fe9d426e92985fa6a1ce9e3e0ad4eba0475a011eb742bf26369228b0e
CRC32 5bcabc57
Example file location C:\Windows\Microsoft.NET\Framework\v4.0.30319\
Filename Aspnet_perf.dll
System Windows 8
File size 41912 bytes
Date -0001-11-30
File details
MD5 4c00e3bd15d83c1118ab6af0fda3dfec
SHA1 014eb74745a1bd2a78704ff8d8894133bb68e64c
SHA256 3acc3bae02eab9d931f30694073958d5da44ef28af8a65063b62770319fa6aaf
CRC32 372054b6
Example file location 1: C:\Windows\Microsoft.NET\Framework\v4.0.30319\
Filename Aspnet_perf.dll
System Windows 7
File size 37720 bytes
Date -0001-11-30
File details
MD5 8114d50dfa0a701028f55d97df6e6260
SHA1 350ef52cb2bccf88076eb988e898c1251bf6fc5b
SHA256 6689c1a2d9183d4a39f974c581932dd05cdb5589c05e067eaa7ee791f00f7cbf
CRC32 5f0c2c24
Example file location C:\Windows\Microsoft.NET\Framework64\v2.0.50727\
Filename Aspnet_perf.dll
System Windows 7
File size 30552 bytes
Date -0001-11-30
File details
MD5 9caa912445da4517f952d008dc7198c7
SHA1 e4c0e487e677d97b6bac1fb9688a3c7607a477f4
SHA256 9b08f73eda37d4100dd5ef77e21e10cc9902c85f6e00a3ef8798bcf248940c4f
CRC32 72b7052f
Example file location C:\Windows\Microsoft.NET\Framework64\v2.0.50727\
Filename Aspnet_perf.dll
System Windows Vista
File size 37720 bytes
Date -0001-11-30
File details
MD5 936f993610e6a49e3372501b295dfee2
SHA1 72537b382bd0d99691e0aa87e43e4ee4b1fc90fa
SHA256 2c0d4a4b152b82fec4e2fde0ba385289379fadf658b84886516bff8b7280009d
CRC32 8fa18ea7
Example file location ---
Filename Aspnet_perf.dll
System Windows Vista
File size 30552 bytes
Date -0001-11-30
File details
MD5 df47aa29e25e74e9ee34cdfc3676d6b6
SHA1 93408dafee4c3e78acf5ac12ffe5703055d6d006
SHA256 cb2d7117709498a78b9461df6c2e8fed13c2fcdf72920c3569b76fc07a6e3ff5
CRC32 ce90b2f7
Example file location ---