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How to use LSP Fix to repair Winsock 2 settings

LSP-Fix is a free utility to repair Winsock 2 settings a specific type of problem associated with certain Internet software. This type of software is known as a Layered Service Provider or LSP, a piece of software that can be inserted into the Windows TCP/IP handler like a link in a chain. However, due to bugs in the LSP software or deletion of the software, this chain can get broken, rendering the user unable to access the Internet.

Unfortunately, this type of software is sometimes quietly installed by unrelated software such as file-sharing programs, malware, trojans and others. In fact, in many cases, the user does not know of its existance until something goes wrong, and he/she can no longer access Web sites. LSP-Fix repairs the Winsock LSP chain by removing the entries left behind when LSP software is removed by hand (or when errors in the software itself break the LSP chain), and removing any gaps in the chain.

Note: LSP-Fix is not a malware removal utility and does not target specific products. LSP-Fix does not delete any files.

Winsock problem symptoms in a HijackThis Log.

O10 – Unknown file in Winsock LSP: c:\windows\temp\ntdll64.dll

How to use LSP-Fix

• Download LSPFix from here and unzip it to your Desktop.
• Run LSPFix.
• Place a tick in the “I know what i`m doing”.
• In the KEEP box select ntdll64.dll (for example) and press “>>” button.
• Press Finish>> button.
• When LSPFix is done removing the LSP you will see a summary box.
• Press OK.

Note: If you need help with the instructions, then post your questions in our Anti-Spyware Software Discussion forum.