WinFSP 2.2 Beta3 Install on Windows Server 2022
Author: lanopk-openboxlabCreated Aug 3, 2026Updated Aug 3, 2026
An error occurs when installing WinFSP 2.2 Beta 3 on Windows Server 2022. Version 2.1 is already installed. The error message details are as follows:
[SEH_AV_READ_NULLPTR] ACCESS_VIOLATION (0xc0000005) at address [0x73c76468] *** Stack Trace (x86) *** [0x73c76468] ShutdownEmbeddedUI() [0x73c7531e] ShutdownEmbeddedUI() [0x73c727b5] ShutdownEmbeddedUI() [0x73c72774] ShutdownEmbeddedUI() [0x000300e0] ----- [0x047af1a8] ----- [0x006d0000] MODULE_BASE_ADDRESS
The installation process must be forcibly terminated. After closing, checking the WinFSP version confirms it is 2.1, and it was not updated.
For reference, I tested this on a Virtual Machine, and the installation is successful if you reinstall it.
Source: winfsp/winfsp