When trying to upgrade MS CRM from 3.0 to 4.0, I get the message below.
Following this, the install doesn't rollback, so I have to uninstall 4.0,
and reinstall CRM 3.0 + Rollups and start again. Any ideas?
Microsoft.Crm.Setup.Server.ConfigureHelpVirtualDirAction failed. Cannot
create a file when that file already exists. (Exception from HRESULT: