The new installation of Exchange 2007 OWA on windows 2008.worked for one month. Now, it doesn't work. When try to access it, we receive this message:
Server Error in Application "DEFAULT WEB SITE/OWA"
Internet Information Services 7.0
HTTP Error 500.21 - Internal Server Error
Handler "PageHandlerFactory-ISAPI-2.0-64" has a bad module "IsapiModule" in its module list
Detailed Error Information
Module IIS Web Core
Error Code 0x8007000d