diasymreader.dll Troubleshoot and Download

Sometimes Windows system displays error messages regarding corrupted or missing diasymreader.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 diasymreader.dll file can therefore effect in failed execution of the started process.

diasymreader.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 diasymreader.dll related errors on your device. You can also download diasymreader.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 diasymreader.dll
File extension DLL
Type Dynamic Link Library
Description Dynamic Link Library
Program Windows 10
Software Windows
Author Microsoft
Software version 10
File size 947376
Oldest file 2009-04-11
Latest file 2017-03-18

There are various types of errors related to diasymreader.dll file. diasymreader.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 diasymreader.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to diasymreader.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 diasymreader.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.

diasymreader.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 diasymreader.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 diasymreader.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 diasymreader.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 diasymreader.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the diasymreader.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 diasymreader.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 diasymreader.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 diasymreader.dll file

The last solution is to manually download and replace diasymreader.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 diasymreader.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of diasymreader.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 diasymreader.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 diasymreader.dll
System Windows 10
File size 947376 bytes
Date -0001-11-30
File details
MD5 211d05cc104e351b3eb1f4be793d1a6d
SHA1 4027f30241e2e37f681fdde04378fe28bbcdbea6
SHA256 fcfa97749362df02ae1db03924fc74b12d570362cabb9b3d911e38542b333e57
CRC32 f4bd8cd0
Example file location C:\Windows\Microsoft.NET\Framework\v4.0.30319\
Filename diasymreader.dll
System Windows 8.1
File size 859744 bytes
Date -0001-11-30
File details
MD5 30ebf1fb739cddf6958369b162cdc565
SHA1 39b655eee58090c6b2bb352d691a52a25c876244
SHA256 d37f69843251940052609947f76fdf1ebc5fda9788dd98c260099699ec842a82
CRC32 f2cbea4a
Example file location C:\Windows\Microsoft.NET\Framework\v4.0.30319\
Filename diasymreader.dll
System Windows 8
File size 868288 bytes
Date -0001-11-30
File details
MD5 5eac7c24407243b31c1f3c06620eaac5
SHA1 00e677c67e677ee0bb9ce24e9b07260de7791fdf
SHA256 ae8baa0ddb052eadc498539bbb630d80c3e28c00528f8d572d3e1a1948b58a12
CRC32 f23d222e
Example file location 1: C:\Windows\Microsoft.NET\Framework\v4.0.30319\
Filename diasymreader.dll
System Windows 7
File size 797016 bytes
Date -0001-11-30
File details
MD5 0017163e0d5985168792bee5cf70d5df
SHA1 3c04785f15c90d443b5559639265f42deba422c1
SHA256 f0685a5cc2a62e6f119ab49434074b3dd58ed0f6f621e33357c8a9d3cc3dd7da
CRC32 d9839993
Example file location C:\Windows\Microsoft.NET\Framework64\v2.0.50727\
Filename diasymreader.dll
System Windows 7
File size 572760 bytes
Date -0001-11-30
File details
MD5 7b46a076184b73aedc1a66a71d9131e8
SHA1 ce2cf451852574ce64d832772da723a6dc10b809
SHA256 a3d5bd5c25f38510a7a09124a1876b2c1fa628d890217f015ff99caeed64dc3b
CRC32 dea5f09c
Example file location C:\Windows\Microsoft.NET\Framework64\v2.0.50727\
Filename diasymreader.dll
System Windows Vista
File size 572248 bytes
Date -0001-11-30
File details
MD5 23c8b66417e69cbbb3c15754cce7ff81
SHA1 2acead3ba277aa025fc2aff7d8b89fe1a0e8168c
SHA256 7329f3195364d9e6ec63e0d5997754d48051a8099bed80fae291a71507756fa0
CRC32 02d6821d
Example file location ---
Filename diasymreader.dll
System Windows Vista
File size 797016 bytes
Date -0001-11-30
File details
MD5 fcf226a5bb55f3d1969fde84e50d2b74
SHA1 1e7925307595a7ff7ca11d00d8a3ed4054d5536a
SHA256 69b2c479b72400ca418a324183b970cb23c69f16420e4d0d40e3947a52598a37
CRC32 80044e5a
Example file location ---