Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions 12.50% 62.50% 12.50% 12.50%


PE structurePE file structure

Show functions
Import table
DeleteFileA, GetSystemInfo, UnmapViewOfFile, GetLastError, MapViewOfFile, CreateFileMappingA, GetFileSize, CreateFileA, CloseHandle, GetTempFileNameA, GetTempPathA, SetUnhandledExceptionFilter, UnhandledExceptionFilter, GetCurrentProcess, TerminateProcess, GetSystemTimeAsFileTime, GetCurrentProcessId, GetCurrentThreadId, GetTickCount, QueryPerformanceCounter, DisableThreadLibraryCalls, InterlockedCompareExchange, Sleep, InterlockedExchange, IsDebuggerPresent
CharNextA, GetSystemMetrics
Export table


Memory File System plugin for RealMedia (32-bit) by RealNetworks

Remove MEMFSYS.dll
MD5:   4059f141b8efa0df75872a64a3a254e6
SHA1:   7ec4a3d5ae9f5711c9aca7bd900e6e734fd809fe
SHA256:   795f29d4a7d643af320b59cb3fd0ac89d715d83fe97b6cfd8dd542c7903e7323

What is MEMFSYS.dll?

Memory File System plugin for RealMedia is part of RealPlayer, by RealNetworks, a cross-platform software product primarily used for the playing of recorded media. The media player is compatible with numerous formats within the multimedia realm, including MP3, MPEG-4, QuickTime, Windows Media, and multiple versions (proprietary) of RealAudio and RealVideo formats.

About MEMFSYS.dll (from RealNetworks)

RealPlayer plays more audio and video files than most other media players. And it’s free. No wonder it’s installed millions of times each month. For instance, you can download videos from thousands of


File name:memfsys.dll
Publisher:RealNetworks, Inc.
Product name:Memory File System plugin for RealMedia® (32-bit)
Description:Memory File System plugin for RealMedia®
Typical file path:C:\Program Files\real\realplayer\plugins\memfsys.dll
File version:
Size:57.5 KB (58,880 bytes)
Digital DNA
PE subsystem:Windows GUI
File packed:No
Code language:Microsoft Visual C++ 9.0
More details

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate N 37.50%
Microsoft Windows XP 25.00%
Windows 7 Home Premium 12.50%
Windows XP Professional 12.50%
Windows 7 Professional 12.50%

Distribution by countryDistribution by country

United States installs about 100.00% of Memory File System plugin for RealMedia® (32-bit) .

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Hewlett-Packard 100.00%
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