- Plesk Onyx for Windows
Websites are unavailable after upgrade to Plesk 10.4 and above:
Websites application pools go down with the following messages in EvenViewer:
Could not load all ISAPI filters for site / service. To cancel the start of the service.
HTTP Filter DLL C: Failed to read the \\Program Files (x86)\\Parallels\\Plesk\\isapi\\sitepreview.dll. The data is the error.
There is no
Explicit ISAPI filter in IIS. Starting from Plesk 10.2
ISAPI filter is not required anymore.
Remove ISAPI filter for sitepreview with the command below:
"%plesk_dir%\\admin\\bin\\websrvmng.exe" --remove-global-filter --name=sitepreview
Since global filters are cached in IIS it is recommended to restart IIS:
iisreset /RESTART /TIMEOUT:120