Another issue that may be faced when deploying custom .Net applications in the CRM root directory is the following error: 'Microsoft.Crm.WebServices.... Microsoft.Crm.WebServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad36... doesn't exist. You can resolve this one of two ways... 1. Add the following to your applications web.config (not CRM's web.config!) <assemblies> <clear/> <add assembly="*"/> </assemblies>...

Working for a client on an upgrade for 3.0 to 4.0 with an application that was in place under the CRM IIS directory as a virtual directory. Struggled trying to get this to work and respond as it did under 3.0. Basically, the site would work if it was it's own web site, but not as a virtual directory. To make matters worse, the only thing returned when you navigated to the site was a blank page. None of my code was executing and I wasn't getting any type of error message. Tried messing with every...