Often, two or more people work on a project together. If the images they're using are stored in different locations, problems can occur. For instance, two people are sharing a project in which the image is stored on CD while the AutoCAD drawings are stored on their respective hard drives. One person's CD drive is labeled E, and the other's is labeled H. Each time they send files back and forth they have to browse to each image's path.
Both users can get around this by setting their project paths to the different locations for the images. (To access the project paths, click Tools menu 
Options.) If they insert the image using IMAGEATTACH, they can choose to leave the path off the image. When the AutoCAD Raster Design toolset tries to resolve this, it will search each of the following locations for the filename with extension (if there is one). If it is not found, every valid extension is tried:
- the saved path
- the current directory
- the directory of the drawing
- the AutoCAD “current project” files search paths