safe file


WAS App Hosting library

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w3wphost.dll. What is it?

The w3wphost.dll is a WAS App Hosting library.

This file is part of Internet Information Services. W3wphost.dll is developed by Microsoft Corporation. It’s a system and hidden file. W3wphost.dll is usually located in the %WINDOWS% sub-folder and its usual size is 54,784 bytes.


The w3wphost.dll process is safe and disabling it can be dangerous, because programs on your computer need it to work correctly.

We also recommend optimizing your computer.

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General Information

Security risk: Free spyware & virus scanRegistry Errors: Free scan (run Registry Cleaner)Uninstallation: N/A Uninstall (run Unistall Manager)Disk & Memory Usage: N/A Free scan (run Task Manager)


Author: Microsoft CorporationProcess: WAS App Hosting libraryPart Of: Internet Information ServicesCommon path(s): subfolder in %WINDOWS%Keywords(s): systemFilesize(s): 54,784 bytes, 46,080 bytes, 55,296 bytes, 56,320 bytes, 47,616 bytes

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