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What is the MSVCR80.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 MSVCR80.dll process is also known as Microsoft® C Runtime Library or, as the case may be, Microsoft Office Enterprise (Version 2007) and is a part of Microsoft Visual Studio (Version 2005) or, as the case may be, Microsoft Visual C (Version 2005 Redistributable). This software is produced by Microsoft (www.microsoft.com). An obsolete or defective version of MSVCR80.dll can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about MSVCR80.dll Microsoft C Runtime Library

MSVCR80.dll is not part of Windows, but it is important nonetheless. MSVCR80.dll is found in a subdirectory of C:\Windows. Frequently occurring are file sizes such as 632,656 bytes (65% of all these files), 626,688 bytes, 635,904 bytes or, as the case may be, 633,672 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. MSVCR80.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 process does not appear as a visible window, but only in Task Manager. There is no concrete documentation available for this service. The file was developed by a so-called third party provider - and not by Microsoft. The original file has been signed by a trusted signature authority. This lets you check your copy to see if it is a counterfeit. 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 MSVCR80.dll file has a 36% certainty of being dangerous if it is found in a subdirectory of "C:\Program Files". In this case, the file size is usually 632,656 bytes. This file has been digitally signed by Microsoft itself to guarantee its authenticity. It 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 particular software does not appear as a visible window, but only in Task Manager. It has a digital signature. This confirms that the producer has been registered with a certificate authority. For this service - unlike Windows' own system services - there is no good description available. The MSVCR80 file is not part of the Windows operating system.

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 MSVCR80.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 MSVCR80?

its supporting VC++ applications to connect to database.Services may stop automatically showing VC++ run time error.
msvcr80.dll and msvcp80.dll to C:\WINDOWS\system32 subfolder
Only that it causes great problems with avg
Msvcr80.dll is Microsoft C Runtime Library and is required to run programs written using Microsoft Visual Studio 2005.
Rule of thumb- Don't remove Microsoft software unless you know exactly what will happen if you do. This particular bit of software allows other, 3rd party, software built with the Virtual Studio 2005 to run properly.

Summary: 7 users judge MSVCR80.dll to be an essential file that should not be touched. 3 users consider it harmless. source: file.net

How to uninstall Microsoft Visual Studio or Microsoft Visual C

MSVCR80.dll Microsoft C Runtime Library fix

To remove Microsoft C Runtime Library from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. In Windows 8, look for Control Panel.
  2. Click Control Panel.
  3. Click Uninstall a program.
  4. Look for Microsoft Visual Studio or Microsoft Visual C in the list of available programs.
  5. Click Uninstall.

How to tell if MSVCR80.dll (Microsoft C Runtime Library) 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 Microsoft C Runtime Library. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Microsoft C Runtime Library 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 MSVCR80.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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