Space Issue for Export-SPWeb Solution

Just when I thought I had seen it all...just for your info a problem and solution that I found.  I was trying export a large SharePoint Site, however, I kept on running into an not enough space error on the drive.  I found this strange since I had over 900 GB on the drive.  Come to find out that files are temporarily written the users' TMP folder.   That particular drive did not have much space, thus the error.  The solution was to modify the environmental variables for the user's TMP folder to a location that had more space.  After updating the variable, everything ran great...