My company is suffering some deployment issues, where we'd be greatly benefited if distributed source files were tagged with their current source control version, or the date/time they were checked in.
Is there a way in Visual Studio to do this automatically?
You need a source control tool, like SourceSafe,TFS. If your Visual Studio comes with one of them, you can use it to version control your solution. I also recommend you try SourceAnywhere, which supports integration with VS well.
what do you mean by "tagged" exactly, putting the info current source control version, or the date/time in the head of a source file? this feature is called Keyword Expansion. you may find one VCS which supports this feature. not sure whether visual studio can do this or not without a 3rd party tool