Should I block it?

No, this file is 100% safe to run.

Additional versions

5.1.2600.5935 (xpsp_sp3_qfe.100211-1426)	12.90%
5.1.2600.5935 (xpsp_sp3_gdr.100211-1404)	58.06%
5.1.2600.5935 (xpsp_sp3_gdr.100211-1404)	3.23%
5.1.2600.5935 (xpsp_sp3_gdr.100211-1404)	3.23%
5.1.2600.5935 (xpsp_sp3_gdr.100211-1404)	3.23%
5.1.2600.5512 (xpsp.080413-0852)	6.45%
5.1.2600.3667 (xpsp_sp2_gdr.100211-1411)	3.23%
5.1.2600.2975 (xpsp.060816-0113)	3.23%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)	6.45%

Relationships

iphlpsvc.dll (Service that offers IPv6 connectivity over an IPv4 network. by Microsoft)

PE file structure

Show functions

Import table

advapi32.dll

CryptAcquireContextW, RegCloseKey, RegEnumKeyExW, RegOpenKeyExW, RegEnumValueW, RegisterServiceCtrlHandlerW, SetServiceStatus, RegQueryValueExW, CryptReleaseContext, CryptGenRandom

dnsapi.dll

DnsReplaceRecordSetW

iphlpapi.dll

GetAdaptersAddresses, GetAdaptersInfo, NotifyAddrChange, NotifyRouteChange

kernel32.dll

FreeLibrary, QueryPerformanceCounter, ExpandEnvironmentStringsW, SetUnhandledExceptionFilter, UnhandledExceptionFilter, GetCurrentProcess, TerminateProcess, GetCurrentProcessId, GetCurrentThreadId, GetSystemTimeAsFileTime, LoadLibraryW, MultiByteToWideChar, WideCharToMultiByte, GetLastError, HeapAlloc, HeapFree, CreateTimerQueue, InterlockedIncrement, InterlockedDecrement, RegisterWaitForSingleObject, CreateEventW, CloseHandle, UnregisterWait, DeleteTimerQueueTimer, DeleteTimerQueue, CreateTimerQueueTimer, ChangeTimerQueueTimer, ReleaseMutex, WaitForSingleObject, UnregisterWaitEx, Sleep, GetComputerNameExW, HeapReAlloc, CreateFileW, DeviceIoControl, GetTickCount, HeapDestroy, CreateMutexW, HeapCreate, DisableThreadLibraryCalls, BindIoCompletionCallback, ReadFile, WriteFile, InitializeCriticalSection, LeaveCriticalSection, EnterCriticalSection, InterlockedExchange, DeleteCriticalSection, QueueUserWorkItem, SetEvent, SetLastError, GetProcAddress

msvcrt.dll

DllMain

mswsock.dll

GetAcceptExSockaddrs, AcceptEx

ntdll.dll

RtlInitUnicodeString, RtlGUIDFromString, RtlStringFromGUID

ole32.dll

CoUninitialize, CoCreateInstance, CoInitializeEx, CoTaskMemFree

rtutils.dll

TracePrintfExW, TraceDeregisterW, RouterLogRegisterW, TraceRegisterExW, RouterLogDeregisterW

wmi.dll

WmiNotificationRegistrationW

ws2_32.dll

WSALookupServiceEnd, WSALookupServiceBeginW, WSAEventSelect, WSASendTo, WSALookupServiceNextW, WSARecvFrom, WSAAddressToStringA, WSAAddressToStringW, getaddrinfo, WSAStringToAddressA, freeaddrinfo, WSASocketW, WSAIoctl, getnameinfo

6to4svc.dll

Service that offers IPv6 connectivity over an IPv4 network. by Microsoft

Remove 6to4svc.dll

Version:	5.1.2600.3667 (xpsp_sp2_gdr.100211-1411)
MD5:	f4024a93b64309bb3e66448b0cd92beb
SHA1:	f9231f4b62beedec3e6d252a25c1aa74d0fd035a

This is a Windows system installed file with Windows File Protection (WFP) enabled.

Overview

6to4svc.dll is loaded as dynamic link library that runs in the context of a process. This is typically installed with the program DirectX 10 RP (RePack) published by KM-Software. This version is installed on Windows XP.

Details

File name:	6to4svc.dll
Publisher:	Microsoft Corporation
Product name:	Service that offers IPv6 connectivity over an IPv4 network.
Description:	Microsoft® Windows® Operating System
Typical file path:	C:\Windows\System32\6to4svc.dll
File version:	5.1.2600.3667 (xpsp_sp2_gdr.100211-1411)
Product version:	5.1.2600.3667
Size:	98.5 KB (100,864 bytes)
Digital DNA
PE subsystem:	Windows Console
File packed:	No
Code language:	Microsoft Visual C++
.NET CLR:	No