-1
 FACE="Verdana, Arial, Helvetica"> = 32h<BR>
<B>DL</B> = drive number</FONT></TD></TR>
<TR>
<TD WIDTH="10%" VALIGN="TOP" BGCOLOR="#dedede"><B><FONT SIZE=-1 FACE="Verdana, Arial, Helvetica">Out:</FONT></B></TD>
<TD WIDTH="90%" VALIGN="TOP" BGCOLOR="#dedede"><P><FONT SIZE=-1 FACE="Verdana, Arial, Helvetica">if successful:<BR>
<B>AL</B> = 00h<BR>
<B>DS:EBX</B> = pointer to DPB</FONT></P>

<P><FONT SIZE=-1 FACE="Verdana, Arial, Helvetica">if failed:<BR>
<B>AL</B> = 0FFh (invalid drive in DL)</FONT>