When one share remote machine drive/folder to local one then Windows uses interanlly the NFS(network File system) that make the acess to remote files system fast.
Not sure how one can get the custom applicaiton in Windows for this. Google give me no good result :( looks i need someones help in this.
One link i got from microsoft, if it helps a bit that for NFS, may be one need to include nfsnp.dll.
http://support.microsoft.com/kb/902458[
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Also check this
http://en.wikipedia.org/wiki/Network_File_System_(protocol)[
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