Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

4.8.3.0 4.92%
4.8.3.0 80.33%
4.8.3.0 1.64%
4.8.3.0 8.20%
4.8.3.0 3.28%
4.8.3.0 1.64%
(Note, Yahoo! publishes each variation of this file with the same version, but the hashes are unique.)

Relationships

PE structurePE file structure
Show functions
Import table
advapi32.dll
SetSecurityDescriptorOwner, SetSecurityDescriptorGroup, InitializeAcl, AddAccessAllowedAce, SetSecurityDescriptorDacl, FreeSid, OpenProcessToken, GetTokenInformation, GetLengthSid, CopySid, AllocateAndInitializeSid, InitializeSecurityDescriptor
kernel32.dll
GetExitCodeProcess, WaitForSingleObject, TerminateProcess, MapViewOfFile, UnmapViewOfFile, GetCurrentProcess, ReleaseSemaphore, CreateSemaphoreA, QueryPerformanceCounter, GetTickCount, CreateFileMappingA, DuplicateHandle, LeaveCriticalSection, TlsGetValue, CreateFileA, ReadFile, WriteFile, SetFilePointer, FlushFileBuffers, FindClose, FindNextFileA, DeleteFileA, SetLastError, GetFileInformationByHandle, GetSystemTime, GetHandleInformation, MoveFileA, CreateDirectoryA, RemoveDirectoryA, LockFile, UnlockFile, GetVersionExA, FindFirstFileA, TlsAlloc, TlsFree, GetCurrentThread, SetThreadPriority, TlsSetValue, SuspendThread, ResumeThread, InterlockedExchange, GlobalMemoryStatus, InitializeCriticalSection, DeleteCriticalSection, LoadLibraryA, GetModuleHandleA, SystemTimeToFileTime, GetThreadContext, GetSystemInfo, FreeLibrary, Sleep, DebugBreak, EnterCriticalSection, OutputDebugStringA, GetStdHandle, CreatePipe, GetLastError, SetHandleInformation, CloseHandle, UnhandledExceptionFilter, GetSystemTimeAsFileTime, GetCurrentProcessId, GetCurrentThreadId, IsDebuggerPresent, SetUnhandledExceptionFilter, InterlockedCompareExchange
msvcr80.dll
DllMain
winmm.dll
timeGetTime
Export table
_PR_AddSleepQ
_PR_CreateThread
_PR_DelSleepQ
_PR_GetPrimordialCPU
_PR_MD_FREE_CV
_PR_MD_NEW_CV
_PR_MD_NOTIFY_CV
_PR_MD_NOTIFYALL_CV
_PR_MD_UNLOCK
_PR_MD_WAIT_CV
_PR_NativeCreateThread
_pr_push_ipv6toipv4_layer
_pr_test_ipv6_socket
GetExecutionEnvironment
LL_MaxInt
LL_MaxUint
LL_MinInt
LL_Zero
PL_ArenaAllocate
PL_ArenaFinish
PL_ArenaGrow
PL_ArenaRelease
PL_Base64Decode
PL_Base64Encode
PL_CompactArenaPool
PL_CompareStrings
PL_CompareValues
PL_CreateLongOptState
PL_CreateOptState
PL_DestroyOptState
PL_FinishArenaPool
PL_FPrintError
PL_FreeArenaPool
PL_GetNextOpt
PL_HashString
PL_HashTableAdd
PL_HashTableDestroy
PL_HashTableDump
PL_HashTableEnumerateEntries
PL_HashTableLookup
PL_HashTableLookupConst
PL_HashTableRawAdd
PL_HashTableRawLookup
PL_HashTableRawLookupConst
PL_HashTableRawRemove
PL_HashTableRemove
PL_InitArenaPool
PL_NewHashTable
PL_PrintError
PL_strcasecmp
PL_strcaserstr
PL_strcasestr
PL_strcat
PL_strcatn
PL_strchr
PL_strcmp
PL_strcpy
PL_strdup
PL_strfree
PL_strlen
PL_strncasecmp
PL_strncaserstr
PL_strncasestr
PL_strncat
PL_strnchr
PL_strncmp
PL_strncpy
PL_strncpyz
PL_strndup
PL_strnlen
PL_strnpbrk
PL_strnprbrk
PL_strnrchr
PL_strnrstr
PL_strnstr
PL_strpbrk
PL_strprbrk
PL_strrchr
PL_strrstr
PL_strstr
PL_strtok_r
PR_Abort
PR_Accept
PR_AcceptRead
PR_Access
PR_AddToCounter
PR_AddWaitFileDesc
PR_AllocFileDesc
PR_Assert
PR_AssertCurrentThreadInMonitor
PR_AssertCurrentThreadOwnsLock
PR_AtomicAdd
PR_AtomicDecrement
PR_AtomicIncrement
PR_AtomicSet
PR_AttachSharedMemory
PR_AttachThread
PR_AttachThreadGCAble
PR_Available
PR_Available64
PR_Bind
PR_BlockClockInterrupts
PR_BlockInterrupt
PR_Calloc
PR_CallOnce
PR_CallOnceWithArg
PR_CancelJob
PR_CancelWaitFileDesc
PR_CancelWaitGroup
PR_CeilingLog2
PR_CEnterMonitor
PR_CExitMonitor
PR_ChangeFileDescNativeHandle
PR_Cleanup
PR_ClearInterrupt
PR_ClearThreadGCAble
PR_Close
PR_CloseDir
PR_CloseDirUTF16
PR_CloseFileMap
PR_CloseSemaphore
PR_CloseSharedMemory
PR_CNotify
PR_CNotifyAll
PR_cnvtf
PR_Connect
PR_ConnectContinue
PR_ConvertIPv4AddrToIPv6
PR_CreateAlarm
PR_CreateCounter
PR_CreateFileMap
PR_CreateIOLayer
PR_CreateIOLayerStub
PR_CreateMWaitEnumerator
PR_CreateOrderedLock
PR_CreatePipe
PR_CreateProcess
PR_CreateProcessDetached
PR_CreateSocketPollFd
PR_CreateStack
PR_CreateThread
PR_CreateThreadGCAble
PR_CreateThreadPool
PR_CreateTrace
PR_CreateWaitGroup
PR_CSetOnMonitorRecycle
PR_CWait
PR_DecrementCounter
PR_Delete
PR_DeleteSemaphore
PR_DeleteSharedMemory
PR_DestroyAlarm
PR_DestroyCondVar
PR_DestroyCounter
PR_DestroyLock
PR_DestroyMonitor
PR_DestroyMWaitEnumerator
PR_DestroyOrderedLock
PR_DestroyPollableEvent
PR_DestroyProcessAttr
PR_DestroyRWLock
PR_DestroySem
PR_DestroySocketPollFd
PR_DestroyStack
PR_DestroyTrace
PR_DestroyWaitGroup
PR_DetachProcess
PR_DetachSharedMemory
PR_DetachThread
PR_DisableClockInterrupts
PR_dtoa
PR_EmulateAcceptRead
PR_EmulateSendFile
PR_EnableClockInterrupts
PR_EnterMonitor
PR_EnumerateAddrInfo
PR_EnumerateHostEnt
PR_EnumerateThreads
PR_EnumerateWaitGroup
PR_ErrorInstallCallback
PR_ErrorInstallTable
PR_ErrorLanguages
PR_ErrorToName
PR_ErrorToString
PR_ExitMonitor
PR_ExplodeTime
PR_ExportFileMapAsString
PR_FD_CLR
PR_FD_ISSET
PR_FD_NCLR
PR_FD_NISSET
PR_FD_NSET
PR_FD_SET
PR_FD_ZERO
PR_FileDesc2NativeHandle
PR_FindFunctionSymbol
PR_FindFunctionSymbolAndLibrary
PR_FindNextCounterQname
PR_FindNextCounterRname
PR_FindNextTraceQname
PR_FindNextTraceRname
PR_FindSymbol
PR_FindSymbolAndLibrary
PR_FloorLog2
PR_FormatTime
PR_FormatTimeUSEnglish
PR_fprintf
PR_Free
PR_FreeAddrInfo
PR_FreeFileDesc
PR_FreeLibraryName
PR_GetAddrInfoByName
PR_GetCanonNameFromAddrInfo
PR_GetConnectStatus
PR_GetCounter
PR_GetCounterHandleFromName
PR_GetCounterNameFromHandle
PR_GetCurrentThread
PR_GetDefaultIOMethods
PR_GetDescType
PR_GetDirectorySeparator
PR_GetDirectorySepartor
PR_GetEnv
PR_GetError
PR_GetErrorText
PR_GetErrorTextLength
PR_GetFileInfo
PR_GetFileInfo64
PR_GetFileInfo64UTF16
PR_GetFileMethods
PR_GetGCRegisters
PR_GetHostByAddr
PR_GetHostByName
PR_GetIdentitiesLayer
PR_GetInheritedFD
PR_GetInheritedFileMap
PR_GetIPNodeByName
PR_GetLayersIdentity
PR_GetLibraryFilePathname
PR_GetLibraryName
PR_GetLibraryPath
PR_GetMemMapAlignment
PR_GetMonitorEntryCount
PR_GetNameForIdentity
PR_GetNumberOfProcessors
PR_GetOpenFileInfo
PR_GetOpenFileInfo64
PR_GetOSError
PR_GetPageShift
PR_GetPageSize
PR_GetPathSeparator
PR_GetPeerName
PR_GetPhysicalMemorySize
PR_GetPipeMethods
PR_GetProtoByName
PR_GetProtoByNumber
PR_GetRandomNoise
PR_GetSocketOption
PR_GetSockName
PR_GetSP
PR_GetSpecialFD
PR_GetStackSpaceLeft
PR_GetSysfdTableMax
PR_GetSystemInfo
PR_GetTCPMethods
PR_GetThreadAffinityMask
PR_GetThreadID
PR_GetThreadPriority
PR_GetThreadPrivate
PR_GetThreadScope
PR_GetThreadState
PR_GetThreadType
PR_GetTraceEntries
PR_GetTraceHandleFromName
PR_GetTraceNameFromHandle
PR_GetTraceOption
PR_GetUDPMethods
PR_GetUniqueIdentity
PR_GMTParameters
PR_htonl
PR_htonll
PR_htons
PR_ImplodeTime
PR_ImportFile
PR_ImportFileMapFromString
PR_ImportPipe
PR_ImportTCPSocket
PR_ImportUDPSocket
PR_IncrementCounter
PR_Init
PR_Initialize
PR_Initialized
PR_InitializeNetAddr
PR_Interrupt
PR_IntervalNow
PR_IntervalToMicroseconds
PR_IntervalToMilliseconds
PR_IntervalToSeconds
PR_IsNetAddrType
PR_JoinJob
PR_JoinThread
PR_JoinThreadPool
PR_KillProcess
PR_Listen
PR_LoadLibrary
PR_LoadLibraryWithFlags
PR_LoadStaticLibrary
PR_LocalTimeParameters
PR_Lock
PR_LockFile
PR_LockOrderedLock
PR_LogFlush
PR_LogPrint
PR_MakeDir
PR_Malloc
PR_MemMap
PR_MemUnmap
PR_MicrosecondsToInterval
PR_MillisecondsToInterval
PR_MkDir
PR_NetAddrToString
PR_NewCondVar
PR_NewLock
PR_NewLogModule
PR_NewMonitor
PR_NewNamedMonitor
PR_NewPollableEvent
PR_NewProcessAttr
PR_NewRWLock
PR_NewSem
PR_NewTCPSocket
PR_NewTCPSocketPair
PR_NewThreadPrivateIndex
PR_NewUDPSocket
PR_NormalizeTime
PR_Notify
PR_NotifyAll
PR_NotifyAllCondVar
PR_NotifyCondVar
PR_Now
PR_ntohl
PR_ntohll
PR_ntohs
PR_Open
PR_OpenAnonFileMap
PR_OpenDir
PR_OpenDirUTF16
PR_OpenFile
PR_OpenFileUTF16
PR_OpenSemaphore
PR_OpenSharedMemory
PR_OpenTCPSocket
PR_OpenUDPSocket
PR_ParseTimeString
PR_ParseTimeStringToExplodedTime
PR_Poll
PR_PopIOLayer
PR_PostSem
PR_PostSemaphore
PR_ProcessAttrSetCurrentDirectory
PR_ProcessAttrSetInheritableFD
PR_ProcessAttrSetInheritableFileMap
PR_ProcessAttrSetStdioRedirect
PR_ProcessExit
PR_PushIOLayer
PR_QueueJob
PR_QueueJob_Accept
PR_QueueJob_Connect
PR_QueueJob_Read
PR_QueueJob_Timer
PR_QueueJob_Write
PR_Read
PR_ReadDir
PR_ReadDirUTF16
PR_Realloc
PR_RecordTraceEntries
PR_Recv
PR_RecvFrom
PR_Rename
PR_ResetAlarm
PR_ResetProcessAttr
PR_ResumeAll
PR_RmDir
PR_RWLock_Rlock
PR_RWLock_Unlock
PR_RWLock_Wlock
PR_ScanStackPointers
PR_SecondsToInterval
PR_Seek
PR_Seek64
PR_Select
PR_Send
PR_SendFile
PR_SendTo
PR_SetAlarm
PR_SetConcurrency
PR_SetCounter
PR_SetCPUAffinityMask
PR_SetEnv
PR_SetError
PR_SetErrorText
PR_SetFDCacheSize
PR_SetFDInheritable
PR_SetLibraryPath
PR_SetLogBuffering
PR_SetLogFile
PR_SetNetAddr
PR_SetPollableEvent
PR_SetSocketOption
PR_SetStdioRedirect
PR_SetSysfdTableSize
PR_SetThreadAffinityMask
PR_SetThreadDumpProc
PR_SetThreadGCAble
PR_SetThreadPriority
PR_SetThreadPrivate
PR_SetThreadRecycleMode
PR_SetTraceOption
PR_ShowStatus
PR_Shutdown
PR_ShutdownThreadPool
PR_Sleep
PR_smprintf
PR_smprintf_free
PR_snprintf
PR_Socket
PR_sprintf_append
PR_sscanf
PR_StackPop
PR_StackPush
PR_Stat
PR_StringToNetAddr
PR_strtod
PR_SubtractFromCounter
PR_SuspendAll
PR_sxprintf
PR_Sync
PR_TestAndEnterMonitor
PR_TestAndLock
PR_ThreadScanStackPointers
PR_TicksPerSecond
PR_TLockFile
PR_Trace
PR_TransmitFile
PR_UnblockClockInterrupts
PR_UnblockInterrupt
PR_UnloadLibrary
PR_Unlock
PR_UnlockFile
PR_UnlockOrderedLock
PR_USPacificTimeParameters
PR_VersionCheck
PR_vfprintf
PR_vsmprintf
PR_vsnprintf
PR_vsprintf_append
PR_vsxprintf
PR_Wait
PR_WaitCondVar
PR_WaitForPollableEvent
PR_WaitProcess
PR_WaitRecvReady
PR_WaitSem
PR_WaitSemaphore
PR_Write
PR_Writev
PR_Yield
PRP_DestroyNakedCondVar
PRP_NakedBroadcast
PRP_NakedNotify
PRP_NakedWait
PRP_NewNakedCondVar
PRP_TryLock
PT_FPrintStats
SetExecutionEnvironment

nspr4.dll

By Yahoo!

Remove nspr4.dll
Version:   4.8.3.0
MD5:   83e624d0986fa920afb69eb71d79942d
SHA1:   fc8fb5829bea20d2e1bfad7394449d2fb6723a9f
SHA256:   28645b0d019216305748ca853d8f734902fbfe81b9c4210dbbd7a9290f9a0e76

What is nspr4.dll?

Yahoo! Messenger (YIM) is an ad-supported instant messaging client and protocol by Yahoo!. Yahoo! Messenger is provided free of charge and can be downloaded and used with a generic "Yahoo! ID" which also allows access to other Yahoo! services, such as Yahoo! Mail, where users can be automatically notified when they receive new email.

About nspr4.dll (from Yahoo!)

“Just sign into Yahoo! Mail to enjoy the same Yahoo! Messenger for the Web service you know and love. Yahoo! Messenger within Yahoo! Mail also allows you to chat with your Facebook and Windows Live fri”

DetailsDetails

File name:nspr4.dll
Publisher:Yahoo! Inc.
Description:nspr4
Typical file path:C:\Program Files\Yahoo!\messenger\nspr4.dll
File version:4.8.3.0
Size:180 KB (184,320 bytes)
Digital DNA
PE subsystem:Windows GUI
Entropy:6.495141
File packed:No
Code language:Microsoft Visual C++ 8.0
.NET CLR:No
More details

ResourcesPrograms

The following programs will install this file
Office Addin
 Acer Incorporated
11% remove
Office-Addin is part of the AcerCloud platform and is designed to integrate with Microsoft Office products (Word, PowerPoint and Excel) and to backup files to the cloud.
Shopping App by Ask
 APN, LLC
  79% remove
“The Shopping Toolbar by Ask has the single purpose of enhancing a user’s online shopping experience by offering an enhanced shopping search experience, links to popular shopping sites and/or additional content such as coupons, special offers and the latest deals from many merchants. The enhanced shopping search experience includes rich content, a variety of product listings, and visual product search results. These are search ads that ...”
Badoo Desktop
 Badoo
26% remove
“Badoo Desktop is a free application that shows you how near other users are right now. ”
Google Talk Plugin
 Google Inc
9% remove
Google Talk is an instant messaging service that provides both text and voice communication. Google Talk is also the name of the client applications offered by Google to access the service. Google Talk is integrated into Gmail. Users can send instant messages to other Gmail users. As it works within a browser, the Google Talk client does not need to be downloaded to send instant messages to Gmail users. Google also provides a Voice and ...
Yahoo! Messenger
 Yahoo! Inc.
7% remove
Yahoo! Messenger (YIM) is an ad-supported instant messaging client and protocol by Yahoo!. Yahoo! Messenger is provided free of charge and can be downloaded and used with a generic "Yahoo! ID" which also allows access to other Yahoo! services, such as Yahoo! Mail, where users can be automatically notified when they receive new email.
Yahoo!7 Messenger
 Yahoo! Inc.
3% remove
“Just sign into Yahoo! Mail to enjoy the same Yahoo! Messenger for the Web service you know and love. Yahoo! Messenger within Yahoo! Mail also allows you to chat with your Facebook and Windows Live friends without requiring any installation. Send text messages in real-time to your friends on Yahoo! 7 or Windows Live™ Messenger. Share photos from your desktop or Flickr, then discuss them over IM while you and a friend view them together....”
AT&T Yahoo! Messenger
 Yahoo! Inc.
21% remove
AT&T Yahoo! Messenger is an AT&T branded version of Y! Messenger.
Yahoo! Install Manager
 Yahoo! Inc.
20% remove
Yahoo Install Manager manages Yahoo program downloads and installations. The install manager keeps track of such programs and assists in the installations to put things in their proper places.
Verizon | Yahoo! Messenger
 Yahoo! Inc.
10% remove
Verizon Yahoo! Messenger is an AVerizon branded version of Y! Messenger.
Yahoo Messenger
 Yahoo! Inc.
5% remove
Is a downloadable casual PC game distributed by Yahoo! Games.

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 26.23%
Microsoft Windows XP 21.31%
Windows 7 Ultimate 21.31%
Windows 8 Pro 9.84%
Windows Vista Home Premium 4.92%
Windows 7 Home Basic 3.28%
Windows 7 Professional 3.28%
Windows 8 1.64%
Windows 8 Pro with Media Center 1.64%
Windows Seven Black Edition 1.64%
Windows 8 Single Language 1.64%
Windows XP Professional 1.64%
Windows Vista Ultimate 1.64%

Distribution by countryDistribution by country

United States installs about 42.37% of nspr4.dll.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 44.07%
Hewlett-Packard 22.03%
Toshiba 10.17%
ASUS 6.78%
Acer 5.08%
American Megatrends 5.08%
Intel 3.39%
GIGABYTE 1.69%
Sahara 1.69%
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