Ntasn1.dll download

Microsoft ASN.1 API

Since you decided to visit this page, chances are you’re either looking for ntasn1.dll file, or a way to fix the “ntasn1.dll is missing” error. Look through the information below, which explains how to resolve your issue. On this page, you can download the ntasn1.dll file as well.

What is Ntasn1.dll?

Ntasn1.dll a DLL (Dynamic Link Library) file, developed by Microsoft, which is referred to essential system files of the Windows OS. It usually contains a set of procedures and driver functions, which may be applied by Windows.

What is Ntasn1.dll used for?

Ntasn1.dll file, also known as Microsoft ASN.1 API, is commonly associated with Microsoft® Windows® Operating System. It is an essential component, which ensures that Windows programs operate properly. Thus, if the ntasn1.dll file is missing, it may negatively affect the work of the associated software.

What is Ntasn1.dll is missing error mean?

There are multiple reasons that may cause ntasn1.dll errors. These include Windows registry issues, malicious software, faulty applications, etc.

Error messages related to the ntasn1.dll file can also indicate that the file has been incorrectly installed, corrupted or removed.

Other common ntasn1.dll errors include:

  • “ntasn1.dll is missing”
  • “ntasn1.dll error loading”
  • “ntasn1.dll crash”
  • “ntasn1.dll was not found”
  • “ntasn1.dll could not be located”
  • “ntasn1.dll Access Violation”
  • “The procedure entry point ntasn1.dll error”
  • “Cannot find ntasn1.dll”
  • “Cannot register ntasn1.dll”
ntasn1.dll - System Error The program can`t start because ntasn1.dll is missing from your computer. Try reinstalling the program to fix problem.

How to fix Ntasn1.dll missing error?

If the “ntasn1.dll is missing” error occurs, you may use one of the methods below – manual or automatic – to solve the problem. The manual method assumes that you download the ntasn1.dll file and put it inside the game/application installation folder, while the second method is much easier as it allows you to automatically fix the error with minimum effort.

Method 1: Download Ntasn1.dll

Search through available versions of ntasn1.dll from the list below, select the correct file and press the “Download” link. If you cannot decide which version to choose, read the article below or use the automatic method to resolve the issue

Ntasn1.dll, 8 available versions

Bits & Version File size Language Description Checksums
32bit 6.3.9600.17415 161.8 KB U.S. English Microsoft ASN.1 API
MD5 5e2ca5eccf3653379ac31e68bb8918ce
SHA1 9f76f9cc646dc909e87f4e61208f07111c2ff52f
64bit 6.3.9600.17415 219.3 KB U.S. English Microsoft ASN.1 API
MD5 9c13e836d2000d9b196289a699edd701
SHA1 71f9e34fe00843f8f7b891ec0da0c2ada6dd2fad
32bit 6.3.9600.16384 167.5 KB U.S. English Microsoft ASN.1 API
MD5 13b9417e93437480e168669ede36298b
SHA1 a03ca93876551fd1f6760e2338277e8f72456f70
32bit 6.2.9200.16384 146.0 KB U.S. English Microsoft ASN.1 API
MD5 d12de9350321cf21238fca4ed76b12a7
SHA1 2f9ca3150dd7c3ee5d02826d40fab154711e39f6
64bit 10.0.14393.0 231.5 KB U.S. English Microsoft ASN.1 API
MD5 a45b23e8d2623ce3f760377766af3e24
SHA1 f39378463a9c5b0c14d6d09464f82f071b9b75d8
32bit 10.0.14393.0 169.0 KB U.S. English Microsoft ASN.1 API
MD5 cda0441be02bb525b159b3949d9dc67d
SHA1 0773cd142f23beb9bb1063bafc175776b36b1157
64bit 10.0.10586.0 234.0 KB U.S. English Microsoft ASN.1 API
MD5 597920df1c9c48d17154d439667d1856
SHA1 e9efe161c97bdde86eec655bd7f75a4300e5c61e
32bit 10.0.10586.0 172.5 KB U.S. English Microsoft ASN.1 API
MD5 f3057c812668f7ec3cfc058dbf15a467
SHA1 ca2103512844f1687f3f9359d4f47758369bc3ef

How to choose the correct version of Ntasn1.dll?

First, look through descriptions in the table above and select the proper file for your program. Pay attention to whether it’s a 64-, or 32-bit file, as well as the language it uses. For 64-bit programs, use 64-bit files if they are listed above.

It’s best to choose those dll files which language corresponds to the language of your program, if possible. We also recommend downloading the latest versions of dll files for an up-to-date functionality.

Where to place the Ntasn1.dll file?

To repair the “ntasn1.dll is missing” error, put the file inside the application/game installation folder. Alternatively, you can place the ntasn1.dll file within the Windows system directory.

How to register Ntasn1.dll?

If putting the missing ntasn1.dll file into the proper directory doesn’t solve the problem, you’ll have to register it. To do so, copy your DLL file to the C:\Windows\System32 folder, and open a command prompt with admin rights. There, type “regsvr32 ntasn1.dll” and press Enter.

Method 2: Fix the missing Ntasn1.dll error automatically

With WikiDll Fixer you can automatically repair ntasn1.dll errors. The utility will not only download the correct version of ntasn1.dll for absolutely free and suggest the right directory to install it but also resolve other issues related to the ntasn1.dll file.
  • Step 1: Click the “Download App. ” button to get an automatic tool, provided by WikiDll.
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  • Step 2: Install the utility by following simple installation instructions.
  • Step 3: Launch the program to fix your ntasn1.dll errors and other issues.

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File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: windows-versions

Limitations: trial version offers an unlimited number of scans, backup, restore of your windows registry for FREE. Full version must be purchased.

Method 3: Fix Ntasn1.dll missing error with System File Checker (SFC)

Many users are familiar with the sfc / scannow system file integrity check command, which automatically checks and fixes protected Windows system files. To execute this command, you have to run command prompt as administrator.
  • Step 1: Start the command line as an administrator in Windows by pressing Win key on your keyboard and typing "Command Prompt" in the search field, then - right-click on the result and select Run as administrator. Alternatively, you can press Win + X key combination which will open the menu where you can select Command Prompt (Admin).
  • Step 2: Type sfc / scannow while in Command Prompt and hit Enter.

After entering the command, a system check will begin. It will take a while, so please be patient. Once operation is complete you will get the message “Windows Resource Protection found corrupt files and successfully repaired them.” or “Windows Resource Protection found corrupt files but was unable to fix some of them”.

Keep in mind that System File Checker (SFC) cannot fix integrity errors for those system files that are currently being used by operating system. To fix these files you have to run SFC command through the command prompt in the Windows recovery environment. You can get into Windows Recovery Environment from the login screen, by clicking Shutdown, then holding down the Shift key while selecting Restart.

In Windows 10, you can press Win key, select Settings > Update & security > Recovery and under Advanced Startup, click Restart now. You can also boot from the installation disk or bootable USB flash drive with the Windows 10 distribution. On the installation screen select your preferred language and then select “System Restore”. After that, go to “Troubleshooting” > “Advanced Settings” > “Command Prompt”. Once in Command Prompt type the following command: sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows where C is the partition with the installed operating system, and C: \ Windows is the path to the Windows 10 folder.

This operation will take a while and it is important to wait until it is complete. When finished, close the command prompt and restart the computer as usual.

Method 4: Fix corrupted Ntasn1.dll file by performing System Restore

System Restore is very useful when you want to fix ntasn1.dll error. Using the "System Restore" function, you can choose restore Windows to the date when the ntasn1.dll file was not damaged. Thus, restoring Windows to an earlier date cancels changes made to system files. Please follow the steps below to roll back Windows using System Restore and get rid of ntasn1.dll error.
  • Step 1: Press the Win + R keys combination to launch Run dialog.
  • Step 2: Type rstrui in the Run text box and click OK or hit Enter. It will open the system recovery utility.
  • Step 3: The “System Restore” window may include the “Choose a different restore point” option. If so, select this option and click Next. Check the “Show more restore points” checkbox to see a complete list of dates.
  • Step 4: Select a date to restore Windows 10. Keep in mind that you need to select a recovery point that will restore Windows to the date when the ntasn1.dll error message did not appear.
  • Step 5: Click the "Next" button and then click "Finish" to confirm your restore point.

At this point, your computer will reboot normally and boot up with restored version of Windows, and ntasn1.dll error should be resolved.

Method 5: Scan your PC for malware to fix ntasn1.dll error

Sometimes ntasn1.dll error can happen because of malware on your computer. The malicious software can intentionally corrupt DLL files in order to substitute them with its own malicious files. Therefore, your number one priority should be to scan your computer for malware and eliminate it as soon as possible.

OPTION 1 - Windows Defender

The new version of Windows 10 has a built-in application called "Windows Defender", which allows you to check your computer for viruses and remove malware, which is difficult to remove in a running operating system. In order to use the Windows Defender Offline scan, go to the settings (Start - Gear icon or Win + I key), select "Update and Security" and go to the "Windows Defender" section.
How to use Windows Defender Offline Scan
  • Step 1: Press Win key or click on Start and click on Gear icon. Alternatively press Win + I key combination.
  • Step 2: Select Update and Security option and go to Windows Defender section.
  • Step 3: At the bottom of the defender settings there is the checkbox " Windows Defender Offline scan". To start it, click "Scan Now". Note that you have to save all unsaved data before rebooting your PC.

After clicking “Scan Now” burton, the computer will reboot and automatically start searching viruses and malware. Upon completion of the scan, the computer will restart, and in the notifications, you will see a report on the completed scan.

OPTION 2 - Malwarebytes

Malwarebytes products are one of the most popular and effective to fight malware and unwanted programs, and they will come in handy even when you have a high-quality third-party antivirus installed. Scanning in the new version of Malwarebytes can be performed in real time and manually. To initiate manual scan please follow the steps below:
  • Step 1: Launch the Malwarebytes program and click Scan Now button. Also, you can select Scan option on the left side of the program’s window and click Full Scan. The system will begin scanning and you will be able to see the scan results.
  • Step 2: Select items that you want to quarantine and press “Quarantine Selected” button. When quarantined, you may be prompted to reboot the computer.
  • Step 3: After the program has been restarted, you can delete all quarantined objects by going to the appropriate section of the program or restore some of them if it turned out that after quarantining something from your software began to work incorrectly.

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