You can map a network share to a SharePoint site (or individual
document library) doing the following:
net use s: http://sharePointserver/somesite/doclib
Note that if there is a space in the path, you need to use quotes
around the url:
net use s: “http://sharePointserver/somesite/shared documents”
Also need to ensure the WebClient service is running.
This would be really useful for automated uploading of documents
through scripts, etc.