Limitations

The scheduler service is able to serve both EPiServer CMS 4 and 5 sites provided that the EPiServer CMS 4 sites are compiled for and run in ASP.NET 2.0. When you install an EPiServer CMS 5 site on a machine, any ASP.NET 1.1 EPiServer CMS 4 sites on that machine will stop running scheduled jobs - following the instructions below will only work for ASP.NET 2.0 EPiServer CMS 4 sites.

Instructions

When you first install EPiServer CMS 5 on a machine where one or several EPiServer CMS 4 sites exist, the scheduled jobs for the EPiServer CMS 4  sites will stop executing. To fix this you need to:

1. If you installed the EPiServer CMS 5 R1 version, upgrade it to SP1.
2. Change the version redirects for the EPiServer.Scheduler.WKTL assembly in the web.config files of all EPiServer CMS 4 installations so that they point to version 5.1.422.4:

<dependentAssembly>
 <assemblyIdentity name="EPiServer.Scheduler.WKTL" publicKeyToken="8fe83dea738b45b7" culture="neutral" />
  <bindingRedirect oldVersion="4.0.0.0-4.65535.65535.65535" newVersion="5.1.422.4" />
</dependentAssembly>