Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

4.0.30319.34209 built by: FX452RTMGDR 0.02%
4.0.30319.34209 built by: FX452RTMGDR 0.02%
4.0.30319.18408 built by: FX451RTMGREL 1.86%
4.0.30319.18408 built by: FX451RTMGREL 1.75%
4.0.30319.18331 built by: FX45GDRSTAGE 0.02%
4.0.30319.18331 built by: FX45GDRSTAGE 0.02%
4.0.30319.17929 built by: FX45RTMREL 1.73%
4.0.30319.17929 built by: FX45RTMREL 1.28%
4.0.30319.17626 built by: FX45RCREL 0.04%
4.0.30319.17626 built by: FX45RCREL 0.02%
4.0.30319.17379 built by: FXBETAREL 0.04%
4.0.30319.17379 built by: FXBETAREL 0.02%
4.0.30319.1 (RTMRel.030319-0100) 25.98%
4.0.30319.1 (RTMRel.030319-0100) 13.46%
4.0.30128.1 (RC1Rel.030128-0100) 0.02%
4.0.21006.1 (B2Rel.021006-0100) 0.02%
2.0.50727.6387 (Win8RTM.050727-6300) 0.04%
2.0.50727.4927 (NetFXspW7.050727-4900) 26.05%
2.0.50727.4927 (NetFXspW7.050727-4900) 16.48%
2.0.50727.42 (RTM.050727-4200) 0.02%
2.0.50727.4016 (NetFxQFE.050727-4000) 2.79%
2.0.50727.4016 (NetFxQFE.050727-4000) 0.53%
2.0.50727.3053 (netfxsp.050727-3000) 6.39%
2.0.50727.3053 (netfxsp.050727-3000) 0.05%
2.0.50727.3053 (netfxsp.050727-3000) 0.84%
View more

Relationships

Parent processes
Related files

PE structurePE file structure
Show functions
Import table
advapi32.dll
RegQueryValueExW, RegCreateKeyExW, RegCreateKeyExA, RegSetValueExW, RegSetValueExA, RegDeleteKeyW, RegDeleteKeyA, RegQueryValueExA, RegOpenKeyExW, RegOpenKeyExA, RegCloseKey, TraceEvent, RegQueryInfoKeyW, DuplicateTokenEx, SetTokenInformation
kernel32.dll
GetEnvironmentVariableA, GetEnvironmentVariableW, GetCurrentProcessId, LocalAlloc, FormatMessageA, FormatMessageW, EnterCriticalSection, LeaveCriticalSection, InitializeCriticalSection, DeleteCriticalSection, ResetEvent, ReleaseSemaphore, TlsSetValue, TlsAlloc, TlsFree, HeapAlloc, GetProcessHeap, HeapFree, WaitForSingleObjectEx, ReleaseMutex, SleepEx, VirtualAlloc, VirtualFree, VirtualQuery, VirtualProtect, HeapCreate, HeapDestroy, HeapValidate, InterlockedExchange, Sleep, GetStartupInfoA, SetUnhandledExceptionFilter, GetTickCount, UnhandledExceptionFilter, GetProcAddress, InterlockedIncrement, IsDebuggerPresent, InterlockedDecrement, TerminateProcess, GetCurrentProcess, WaitForMultipleObjects, CreateThread, OpenProcess, SetEvent, DebugBreak, TlsGetValue, InterlockedCompareExchange, GetLastError, SetLastError, GetModuleHandleA, FreeLibrary, lstrlenW, CloseHandle, RaiseException, LocalFree, MultiByteToWideChar, GetCPInfo, GetACP, GetCurrentThreadId, QueryPerformanceCounter, GetSystemTimeAsFileTime, GetVersionExA, GetModuleHandleW, GetCommandLineW, WideCharToMultiByte, LoadLibraryExA, LoadLibraryExW, GetModuleFileNameA, GetModuleFileNameW, CreateSemaphoreA, CreateSemaphoreW, CreateMutexA, CreateMutexW, CreateEventA, CreateEventW, OpenEventA, OpenEventW, DecodePointer, EncodePointer, HeapSetInformation, GetStartupInfoW, LoadLibraryW, OutputDebugStringW, GetFileAttributesW, GetWindowsDirectoryW, GetVersionExW, SetEnvironmentVariableW, GetVersion, FindClose, FindFirstFileW, WaitForSingleObject, CreateFileW
mscoree.dll
DllMain
msvcr100_clr0400.dll
DllMain
msvcr80.dll
DllMain
ole32.dll
CoRevokeClassObject, CoAddRefServerProcess, CoUninitialize, CoInitializeEx, CoRegisterClassObject, CoReleaseServerProcess
user32.dll
PeekMessageA, PeekMessageW, DispatchMessageA, DispatchMessageW, MessageBoxA, MessageBoxW, LoadStringA, LoadStringW, MsgWaitForMultipleObjects, MsgWaitForMultipleObjectsEx

mscorsvw.exe

Microsoft .NET Framework by Microsoft Corporation (Signed)

Remove mscorsvw.exe
Version:   4.0.30319.17929 built by: FX45RTMREL
MD5:   86329c35ff23cfef0fb6c0023ba06bce
SHA1:   e3529cca09dd0e6c1d44a5bbe310074b6d53bd94
SHA256:   d915ce7ad564f97a1c3b047d5248b7ef67addc59687fbc90f1776c21daa0d3fd
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is mscorsvw.exe?

.NET Runtime Optimization Service for the .NET Framework is a software framework developed by Microsoft that includes a large library and provides language interoperability. Programs written for the .NET Framework execute in a software environment known as the Common Language Runtime (CLR), an application virtual machine that provides services such as security, memory management, and exception handling. The class library and the CLR together make up the .NET Framework.

About mscorsvw.exe (from Microsoft Corporation)

“.NET is an integral part of many applications running on Windows and provides common functionality for those applications to run. This download is for people who need .NET to run an application on the”

DetailsDetails

File name:mscorsvw.exe
Publisher:Microsoft Corporation
Product name:Microsoft® .NET Framework
Description:.NET Runtime Optimization Service
Typical file path:C:\windows\microsoft.net\framework\v2.0.50727\mscorsvw.exe
File version:4.0.30319.17929 built by: FX45RTMREL
Product version:4.0.30319.17929
Size:120.95 KB (123,856 bytes)
Certificate
Issued to:Microsoft Corporation
Authority (CA):Microsoft Corporation
Effective date:Wednesday, October 22, 2008
Expiration date:Friday, January 22, 2010
Digital DNA
PE subsystem:Windows GUI
Entropy:6.492676
File packed:No
Code language:Microsoft Visual C# / Basic .NET
.NET CLR:No
More details

BehaviorsBehaviors

Services
Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
  • 'clr_optimization_v2.0.50727_64' (Microsoft .NET Framework NGEN v2.0.50727_X64)
  • clr_optimization_v4.0.30128_32
  • 'clr_optimization_v4.0.30319_64' (Microsoft .NET Framework NGEN v4.0.30319_X64)
  • 'clr_optimization_v4.0.30319_32'
  • 'clr_optimization_v2.0.50727_32'
  • 'clr_optimization_v4.0.30319_64'
  • 'clr_optimization_v2.0.50727_64'

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.01167128%
0.028634%
Kernel CPU:0.00440684%
0.013761%
User CPU:0.00726444%
0.014873%
Kernel CPU time:1,079,865 ms/min
100,923,805ms/min
CPU cycles:2,296,702/sec
17,470,203/sec
Context switches:3/sec
284/sec
Memory
Private memory:29.97 MB
21.59 MB
Private (maximum):24.29 MB
Private (minimum):22.65 MB
Non-paged memory:29.97 MB
21.59 MB
Virtual memory:72.81 MB
140.96 MB
Virtual memory (peak):76.8 MB
169.69 MB
Working set:25.2 MB
18.61 MB
Working set (peak):30.06 MB
37.95 MB
Page faults:23,207,621/min
2,039/min
I/O
I/O read transfer:48.97 KB/sec
1.02 MB/min
I/O read operations:38/sec
343/min
I/O write transfer:329 Bytes/sec
274.99 KB/min
I/O write operations:2/sec
227/min
I/O other transfer:1.45 KB/sec
448.09 KB/min
I/O other operations:766/sec
1,671/min
Resource allocations
Threads:7
12
Handles:97
600

BehaviorsProcess properties

Integrety level:System
Platform:64-bit
Command lines:
  • C:\windows\microsoft.net\framework64\v4.0.30319\mscorsvw.exe
  • C:\windows\microsoft.net\framework64\v4.0.30319\mscorsvw.exe -startupevent 2b0 -interruptevent 0 -ngenprocess 248 -pipe 268 -comment "ngen worker process"
Owner:SYSTEM
Windows Service
Service name:clr_optimization_v2.0.50727_64
Display name:Microsoft .NET Framework NGEN v2.0.50727_X64
Description:“Microsoft .NET Framework NGEN”
Type:Win32OwnProcess
Parent processes:

ResourcesThreads

Averages
 
sechost.dll
Total CPU:0.10682814%
0.272967%
Kernel CPU:0.04861905%
0.107585%
User CPU:0.05820909%
0.165382%
CPU cycles:2,304,927/sec
5,741,424/sec
Context switches:1/sec
79/sec
Memory:124 KB
1.16 MB
mscorsvc.dll
Total CPU:0.01549622%
Kernel CPU:0.00522333%
User CPU:0.01027289%
CPU cycles:516,420/sec
Context switches:1/sec
Memory:508 KB
mscorsvw.exe (main module)
Total CPU:0.00323136%
Kernel CPU:0.00067848%
User CPU:0.00255288%
CPU cycles:38,742/sec
Memory:124 KB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 66.00%
Windows 7 Ultimate 21.00%
Windows 7 Professional 9.00%
Windows Seven Black Edition 2.00%
Windows 7 Home Basic 2.00%

Distribution by countryDistribution by country

United States installs about 57.00% of Microsoft® .NET Framework.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 29.01%
Hewlett-Packard 20.61%
Acer 13.74%
Toshiba 13.74%
ASUS 9.16%
Sony 6.11%
Alienware 3.05%
Samsung 3.05%
GIGABYTE 1.53%
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