Struggling with this error that occurs the first time the site is viewed after an IIS restart?
This problem can be caused by the EPiServer Scheduler service not being installed.
Try this:
C:\Inetpub\wwwroot\bin>C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\InstallUtil.exe EPiServer.SchedulerSvc.exe
(From the EPiServer FAQ: http://www.episerver.com/en/EPiServer_Knowledge_Center/Support/FAQ_EPiServer_4/905/923/)
A very mysterious error – indeed. Seen it a few times but I think it was more than a year ago since. Check out my blog, sometimes I blog about EPi.