I'm not saving to a path - I'm using a memorystream to generate the document, attach it to an email and send it, then drop it.

 

I got the basis for the code here: http://cutesoft.net/forums/post/37207.aspx

 

I tried searching the forums for the error, didn't find it, but found this, which was close.  I followed the instructions here, even though I didn't think it would help; it didn't; http://cutesoft.net/forums/thread/29248.aspx