ULS Viewer

Stefan Gordon's ULS Viewer: http://ulsviewer.codeplex.com/

Enumerate Features ...

Deploying from one box to another, I get the "Feature {guid} not enabled" - now to figure out what that feature is ...

Get-SPFeature is the Powershell command.

http://www.glynblogs.com/2010/08/powershell-commands-to-list-sharepoint-features.html

Has the details.