I'm not familiar with the "publishWithSubs" method but could you loop through the children of the parent document instead and recursively publish every child document?  

I say "Document" instead of "Node" because I think only a document can be published, a node is already a published version of the underlying document, see http://our.umbraco.org/wiki/reference/api-cheatsheet/difference-between-node-and-document.

For example you could have a method that calls itself, once you call it initially on your parent document.  Something like:

// get a document version of your node
Document parentDoc = new Document(node.Id);

// where parentDoc is your parent Document
this.PublishChildDocs(parentDoc);

protected void PublishChildDocs(Document doc)
{
         doc.Publish(User.GetUser(0));
            
         // loop through all child documents in the doc, recursively calling this method
         foreach (Document childDoc in doc.Children)
         {
                PublishChildDocs(childDoc);
         }

 }

Hi. Probably this will work:

doc.PublishWithSubs(User.GetCurrent());
library.RefreshContent(); 

Some drawback may be that the whole umbraco.config will be rebuilt, though.

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