What is the MSASN1.dll component needed for?Simply stated, a DLL file is an unnamed executable file. It cannot be directly invoked, but it can be called by any executable Windows program.
The MSASN1.dll process is also known as ASN.1 Runtime APIs and is a part of Microsoft Windows Operating System. This software is produced by Microsoft (www.microsoft.com). An obsolete or defective version of MSASN1.dll can cause problems for your computer that can range from slowness to error messages such as these:
- ASN.1 Runtime APIs has stopped working. Windows is checking for a solution to the problem... (Windows 10, 8, 7)
- ASN.1 Runtime APIs has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available. (Windows 10, 8, 7)
- MSASN1.dll has encountered a problem and needs to close.
- Access violation at address FFFFFFFF in module MSASN1.dll. Read of address 00000000.
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What you should know about MSASN1.dll ASN.1 Runtime APIs
MSASN1.dll is not part of Windows, but it is important nonetheless. The file MSASN1.dll is found in a subdirectory of C:\Windows.
The file size is 34,304 bytes.
This so-called dynamic link library (DLL) contains all the functions that have been transferred to a separate file. These transferred functions are available not only to this particular program, but can also be used by other applications. For this service - unlike Windows' own system services - there is no good description available. The file also can also affect other applications by changing their properties. Such manipulation can cause an application to do things other than what it is intended to do. The file was developed by a so-called third party provider - and not by Microsoft. This process does not appear as a visible window, but only in Task Manager. The file contains Microsoft's digital signature. This confirms its authenticity. MSASN1.dll appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files. For this reason, 40% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
A MSASN1.dll file has a 38% certainty of being dangerous if it is found in the C:\Windows\System32 directory. In this case, the file size is usually 34,304 bytes (75% of all these files) or, as the case may be, 50,616 bytes.
This MSASN1 program does not have a visible window, and does not appear on the taskbar. The service has no characteristics or description of its own. This is unusual. MSASN1.dll also can also affect other applications by changing their properties. Such manipulation can cause an application to do things other than what it is intended to do. This file was developed by a so-called third party provider - and not by Microsoft. The original file by Microsoft is digitally signed. So please check the file on your computer.
MSASN1.dll appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files.
If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves MSASN1.dll. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.
What do other computer users say about MSASN1?
The file spreads very slowly and does not often make an appearance. Therefore, feedback from other users is not yet available.
Summary: source: file.net
How to uninstall the program
To remove ASN.1 Runtime APIs from your computer, please follow the manual instructions below or use an automatic uninstaller product.
- Click the Windows Start Button. You find it in the lower left corner of the taskbar.
- Type the word uninstall.
- Click Add or remove programs.
- Now locate the program in the list of displayed applications.
- Click the program, and then click Uninstall.
How to tell if MSASN1.dll (ASN.1 Runtime APIs) was uninstalled cleanly
After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of ASN.1 Runtime APIs. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for ASN.1 Runtime APIs or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.
What to do if a program does not uninstall
The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.
Last but not least
If Windows not working quite right for you, or if startup is taking a long time, or MSASN1.dll is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.
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