exception of network drives, the drives available will usually not change during an execution of GEOS, although the volumes mounted on the drives can change. Every drive is accessed by its <EM>
drive number</EM>
. This token is a byte-length integer value.</P>
<P>
When you wish to open a file, you must specify its volume, not its drive. This is because the volume mounted on a drive can change frequently and without warning. </P>
<P>
GEOS<A NAME="IX_DriveGetStatus()">
 </A>
 provides routines to get informat