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tapiperf.dll

Microsoft Windows(TM) Telephony Performance Monitor file version info

Library on Windows 2 known copies with hashes

Is it the real tapiperf.dll?

file version info and known copies
Installed inC:\Windows\system32\
C:\Windows\SysWOW64\
Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionMicrosoft Windows(TM) Telephony Performance Monitor

2 known copies

10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\tapiperf.dll · signed by Microsoft Windows

288022ff556fa7697afc3aaffeb3409bf520f99aac0a43e11956a5295ece3746

10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\tapiperf.dll · signed by Microsoft Windows

a62afa9a3148c09152ee0b2c0225fbedb0d787582fddc55eb48d040d3f9c54c1

From the file’s version info and the copies recorded by xCyclopedia (MIT). A copy in another folder, signed by someone else or with another hash is not necessarily malicious, but it is worth a closer look. In Ceplin, "<sha256>".whatis() says which known copy a hash is.