refuses to open file

[rbtwms at paradiseca.com]

I wrote a program and had it working fine,  Then made a change so I could
change the file name from the command line.  Now the progrram refuses to
open the file.
File efile;
  writefln("command line %s", args[]);

    if(args.length == 3) {
    	type = to!int( args[1] );
//			writefln("args[2] is: %s",args[2]);
      }
    if (args.length == 2){
        efile = File(args[2]);
        }
    if (args.length == 1){
      efile = File("key"); // I moved file to dir the program is in
     }
orignal just had a line  efile = File("l:\\mvammach\\key");
command line ["eqipfile"]
std.exception.ErrnoException at std\stdio.d(289): Cannot open file ` KEY ' in
mode `rb' (No such file or directory)
----------------
0x0041B4B8
0x0041B343
0x00411E57
0x0040BB38
0x0040BB72
0x0040B794
0x00422B2D
0x750233AA in BaseThreadInitThunk
0x77369EF2 in RtlInitializeExceptionChain
0x77369EC5 in RtlInitializeExceptionChain
----------------
 Volume in drive C is OS
 Volume Serial Number is E221-AB60

 Directory of C:\D\projects\equipment

04/16/2013  04:41 PM    <DIR>          .
04/16/2013  04:41 PM    <DIR>          ..
04/13/2013  06:39 PM            17,764 eqip.txt
04/14/2013  03:26 PM             1,650 eqipfile.bak
04/16/2013  04:44 PM             2,469 eqipfile.d
04/16/2013  04:40 PM           265,244 eqipfile.exe
04/16/2013  04:40 PM           120,600 eqipfile.obj
04/16/2013  04:41 PM               369 error.txt
01/04/2013  10:04 AM         1,909,000 KEY
04/16/2013  04:22 PM    <DIR>          mvammach
               7 File(s)      2,317,096 bytes
               3 Dir(s)  896,994,713,600 bytes free
can anybody help with this?