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How to fix winhttp.dll errors

DLL ToolDLL TOOL downloads winhttp.dll and repairs winhttp.dll missing or not found for PCs installed with Microsoft OS such as Windows XP and Windows 7.

Introduction to winhttp.dll

Winhttp.dll is a kind of Windows HTTP Services (WinHTTP) and offers programmers an HTTP client application programming interface (API) to request other HTTP servers through the HTTP protocol. WinHTTP is available for desktop client applications, Windows services, and Windows server-based applications. It is not suitable for applications based on the Microsoft .NET Framework, because these kind of applications are supposed to apply the networking facilities in the System.Net classes.

Winhttp.dll is designed to present a C/C++ API as well as a Component Object Model (COM) automation component that is suitable for use in Active Server Pages (ASP) based programs. A fundamental understanding of the HTTP protocol is essential for the application of either interface. The newer version of WinHTTP included improvements over older version preinstalled with the operating system. The WinHTTP 5.0 is no longer downloadable from Microsoft MSDN.

As we know that Dll is short for Dynamic Link Library file and this Dynamic Link Library file includes common-language instructions that many different system programs and files can call for the implementation of requested functions. The file is applied into Windows HTTP Services and affects many different Web and network-related programs. WinHTTP is also created for system services and HTTP-based client applications. Single-user applications have to consider using WinINet in some cases.

What are winhttp.dll error messages?

  1. Error coming in a text file name debug containing ERROR: proxy_ resolver_ winhttp.cc (79) WinHttp Get Proxy For Url failed: 12167.
  2. Netsh winhttp does not appear to work: In the batch file is a proxy setting which does not work. After the batch file is run and I then check Internet Settings > LAN Settings the proxy settings are as they were last time you changed them manually.
  3. When executed in command it appears to work and does not throw up any error messages. Even 'netsh winhttp show proxy' displays the correct setting but proxy is not changed.
  4. Missing winhttp.dll pops up trying to install adobe flash player. can't read it on installation disk cause of scratch.
  5. Trying to load Microsoft office and you keep getting an error saying winhttp.dll is missing.
  6. When trying to start the DHCP Service, you get the following error: "Windows Could Not Start the DHCP Client Service on the local computer. Error 5: Access Denied".
  7. Been trying to get into youtube and adobe flash, but error screens keep coming up saying that winhttp.dll needs to be reinstalled, but you don't know where to go or how to go about reinstalling it.
  8. Application WINHTTP.dll is missing. Need to reinstall: Windows SQM consolidator, windows defender, problem reports and solutions stopped working.

What are causes of Winhttp.dll errors?

Winhttp.dll error can result from unsuccessful update, for example, update for Background Intelligent Transfer Service (BITS) 2.0 and WinHTTP 5.1 (KB842773) after a fresh install of windows. You are trying to update but always fail to download. After finally downloading it, you are told that the file is corrupted.

When the Winhttp.dll is corrupted or has been hooked up with the bug, you will suffer from this situation where an error message says "This application has failed to start because the WINHTTP.dll was not found. Re-installing the application may fix this problem". But after reinstalling the restore discs again, you get the same error message. You cannot do any Windows updates either. It says you are not capable of accessing the Windows Update website from Windows based operating system. You try to dl and install the XP Service pack 3 but it says the Service pack you have installed is lower than what is required, which actually you do not have any SP installed.

The corrupted registry entries of Winhttp.dll and other dll files are another main cause of this error.

Solution to fixing Winhttp.dll errors

Some application may not be installed or applied correctly if the Winhttp.dll file is not found, damaged or obsolete. To resolve issues of this process, you can download and reinstall a new version, recover the last working version or perform a manual replacement for the file. It is preferable to carry out these fixes in the order in which they occur.

Winhttp.dll trouble is about the failure to install windows updates and programs (error 8024D007). For example, when you have been trying to get into youtube and adobe flash, but error messages keep showing up, you failed to restore system and were unable to choose restore point before the last configured time when installing Itunes, which you uninstalled because extremely slow and unusable. Tried installing IE8 nearly at the same time but it would not run or complete installation.

The critical step is to repair some relevant registry keys. You can perform it with the help of DLL TOOL, which has mixed dll error fixer with the registry cleaner.

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