You choose Options->Export from the menu.
In the dialog check the "Enable Exporting" checkbox and select the file weezee posted. Probably the file already exists in the installation folder of GSpot and you don't need the one posted above.
After you have checked the checkbox GSpot is going to create a TXT file with the name of the video whenever you drag&drop a video file on the GSpot main window. The file is going to be located where the video is. It can take a few seconds until the file is created.
You have to enable exporting each time you start GSpot.
