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MSTTSEngine.dll

Microsoft TTS Engine (Desktop) file version info

Library on Windows 2 known copies with hashes

Is it the real MSTTSEngine.dll?

file version info and known copies
Installed inC:\Windows\system32\Speech\Engines\TTS\
C:\Windows\SysWOW64\Speech\Engines\TTS\
Signed byMicrosoft Windows
ProductMicrosoft TTS Engine, Microsoft Corporation
DescriptionMicrosoft TTS Engine (Desktop)

2 known copies

11.0.58.18 · C:\Windows\SysWOW64\Speech\Engines\TTS\MSTTSEngine.dll · signed by Microsoft Windows

04a8f0368bcd97a6b91ce54ff82526db6a01e6b2a171409bfeb5a3be97df82bb

11.0.58.18 · C:\Windows\system32\Speech\Engines\TTS\MSTTSEngine.dll · signed by Microsoft Windows

94cecafadd01893ea4b7f4f452c4269e7b59db610556b1151caed0f5b078dd18

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.