Should I block it?

No, this file is 100% safe to run.

Additional versions

11.0.6000.64 built by: WinDDK	0.82%
11.0.6000.63 built by: WinDDK	0.82%
11.0.6000.62 built by: WinDDK	3.28%
11.0.6000.60 built by: WinDDK	0.82%
11.0.6000.59 built by: WinDDK	0.82%
11.0.6000.54 built by: WinDDK	2.46%
11.0.6000.53 built by: WinDDK	4.10%
11.0.6000.51 built by: WinDDK	2.46%
11.0.6000.48 built by: WinDDK	1.64%
11.0.6000.45 built by: WinDDK	2.46%
11.0.6000.40 built by: WinDDK	0.82%
11.0.6000.38 built by: WinDDK	0.82%
11.0.6000.37 built by: WinDDK	1.64%
11.0.6000.36 built by: WinDDK	0.82%
11.0.6000.26 built by: WinDDK	0.82%
11.0.6000.25 built by: WinDDK	1.64%
11.0.6000.16 built by: WinDDK	1.64%
11.0.5600.13 built by: WinDDK	5.74%
11, 0, 6000, 89	0.82%
11, 0, 6000, 85	4.10%
11, 0, 6000, 85	0.82%
11, 0, 6000, 85	0.82%
11, 0, 6000, 81	1.64%
11, 0, 6000, 75	0.82%
11, 0, 6000, 69	1.64%
View more
11, 0, 6000, 67	4.10%
11, 0, 6000, 350	0.82%
11, 0, 6000, 343	0.82%
11, 0, 6000, 332	1.64%
11, 0, 6000, 319	7.38%
11, 0, 6000, 314	0.82%
11, 0, 6000, 312	0.82%
11, 0, 6000, 308	1.64%
11, 0, 6000, 300	3.28%
11, 0, 6000, 295	0.82%
11, 0, 6000, 280	1.64%
11, 0, 6000, 274	0.82%
11, 0, 6000, 269	0.82%
11, 0, 6000, 268	0.82%
11, 0, 6000, 259	0.82%
11, 0, 6000, 255	0.82%
11, 0, 6000, 249	0.82%
11, 0, 6000, 244	3.28%
11, 0, 6000, 230	0.82%
11, 0, 6000, 216	2.46%
11, 0, 6000, 214	0.82%
11, 0, 6000, 210	0.82%
11, 0, 6000, 196	0.82%
11, 0, 6000, 181	0.82%
11, 0, 6000, 178	0.82%
11, 0, 6000, 165	0.82%
14 other versions

Relationships

PE file structure

Show functions

Import table

advapi32.dll

CloseServiceHandle, OpenServiceW, OpenSCManagerW, SetSecurityDescriptorDacl, InitializeSecurityDescriptor, StartServiceW, RegCloseKey, RegOpenKeyExW, RegQueryValueExW, RegDeleteKeyW, RegDeleteValueW, RegNotifyChangeKeyValue, RegCreateKeyExW, RegSetValueExW, RegQueryInfoKeyW, RegEnumKeyExW, RegSetKeySecurity, RegOpenKeyW, ConvertStringSecurityDescriptorToSecurityDescriptorW, RegSetValueExA, RegOpenKeyExA, RegEnumValueW

audioeng.dll

AERT_Allocate, AERT_Free

avrt.dll

AvSetMmThreadCharacteristicsW, AvSetMmThreadPriority, AvRevertMmThreadCharacteristics

kernel32.dll

WaitForSingleObject, CreateMutexW, UnmapViewOfFile, ResetEvent, CreateFileMappingW, GetVersionExW, WriteFile, GetLocalTime, GetDateFormatW, GetTimeFormatW, SetFilePointer, MapViewOfFile, RaiseException, CloseHandle, GetLastError, DeviceIoControl, CreateFileW, lstrlenW, EnterCriticalSection, LeaveCriticalSection, InitializeCriticalSection, DeleteCriticalSection, InterlockedIncrement, InterlockedDecrement, lstrcmpiW, SetEvent, InterlockedExchange, WaitForMultipleObjects, CreateThread, CreateEventW, FreeLibrary, MultiByteToWideChar, SizeofResource, LoadResource, FindResourceW, LoadLibraryExW, GetModuleHandleW, GetModuleFileNameW, VerifyVersionInfoW, VerSetConditionMask, LocalFree, SetThreadLocale, GetThreadLocale, HeapDestroy, HeapAlloc, HeapFree, HeapReAlloc, HeapSize, GetProcessHeap, GetVersionExA, WideCharToMultiByte, Sleep, InterlockedCompareExchange, QueryPerformanceCounter, GetTickCount, GetCurrentThreadId, GetCurrentProcessId, GetSystemTimeAsFileTime, TerminateProcess, UnhandledExceptionFilter, SetUnhandledExceptionFilter, OutputDebugStringA, GetCurrentProcess, CreateEventA, CreateMutexA, CreateFileMappingA, GetVersion, LockResource, FindResourceExW, GetProcAddress, LoadLibraryW, OpenEventW, ReleaseMutex, SystemTimeToFileTime, InterlockedPushEntrySList, InterlockedFlushSList, InterlockedPopEntrySList, InitializeSListHead, TerminateThread, OpenMutexW, WaitForSingleObjectEx, SetThreadPriority, GetThreadPriority, GetPriorityClass, OpenFileMappingW, ResumeThread, DuplicateHandle

msvcrt.dll

DllMain

ole32.dll

StringFromGUID2, CoTaskMemRealloc, CoTaskMemAlloc, CLSIDFromString, PropVariantClear, CoTaskMemFree, CoCreateInstance

setupapi.dll

SetupDiDestroyDeviceInfoList, SetupDiEnumDeviceInterfaces, SetupDiGetClassDevsW, SetupDiGetDeviceInterfaceDetailW, SetupDiGetDeviceInterfaceAlias

user32.dll

UnregisterClassA, CharNextW, RegisterWindowMessageW, SetTimer, KillTimer

ws2_32.dll

WSACloseEvent, WSAEventSelect, WSACreateEvent, WSAWaitForMultipleEvents, WSAEnumNetworkEvents

Export table

DllCanUnloadNow

DllGetClassObject

DllRegisterServer

DllUnregisterServer

RTKAPO.Dll

Realtek(r) LFX/GFX DSP component by Realtek Semiconductor Corp (Signed)

Remove RTKAPO.Dll

Version:	11, 0, 6000, 75
MD5:	9d9cca142efbb7f592e71cb91ac6c92d
SHA1:	3f91dc055c581aeb9babb7c733a5bdfabdcb643d
SHA256:	479c702a6e125af7957f2e6932365d54cce628d8cacb2fed83f964cf340b75c6

Overview

rtkapo.dll is loaded as dynamic link library that runs in the context of a process. This is typically installed with the program Realtek High Definition Audio Driver published by Realtek Semiconductor Corp.. The file is digitally signed by Realtek Semiconductor Corp which was issued by the VeriSign certificate authority (CA).

Details

File name:	rtkapo.dll
Publisher:	Realtek Semiconductor Corp.
Product name:	Realtek(r) LFX/GFX DSP component
Typical file path:	C:\Windows\System32\rtkapo.dll
File version:	11, 0, 6000, 75
Size:	2.23 MB (2,334,752 bytes)
Certificate
Issued to:	Realtek Semiconductor Corp
Authority (CA):	VeriSign
Expiration date:	Friday, June 11, 2010
Digital DNA
PE subsystem:	Windows Console
File packed:	No
Code language:	Microsoft Visual C++
.NET CLR:	No

More details

Programs

The following program will install this file

Realtek High Definition Audio Driver

Realtek Semiconductor Corp.

9% remove

Realtek's High Definition Audio Driver provide high quality DTS, Dolby, Surround Sound to your PC via the audio card. The software comes with a number of features and functionality such as a six channel Digital to Analog Converter (DAC) that fully supports the 16/20/24-bit Pulse Code Modulation format for 5.1 channel audio. It supports legacy analog input to analog output mixer as well as 44.1k/48k/96kHz Sony/Philips Digital Interconnec...

Distribution by Windows OS

OS version	distribution
Windows Vista Home Premium	30.33%
Windows 7 Ultimate	22.95%
Windows 7 Home Premium	10.66%
Windows 7 Professional	9.02%
Windows Vista Home Basic	8.20%
Windows 7 Starter	6.56%
Windows 8 Pro	3.28%
Windows Vista Ultimate	1.64%
Windows 7 Home Basic	1.64%
Windows 7 Enterprise	1.64%
Windows Vista Business	1.64%
Windows Se7en Titan	0.82%
Windows Seven Black Edition	0.82%
Microsoft Windows XP	0.82%

Distribution by country

United States installs about 32.79% of Realtek(r) LFX/GFX DSP component.

Distribution by PC manufacturer

PC Manufacturer	distribution
Toshiba	19.26%
Acer	15.56%
Dell	14.81%
ASUS	13.33%
Hewlett-Packard	10.37%
Gateway	4.44%
Medion	4.44%
Sony	4.44%
Samsung	3.70%
GIGABYTE	2.96%
Lenovo	2.96%
Intel	1.48%
American Megatrends	1.48%
Sahara	0.74%

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