Can't Use full filenames in oggenc since Vakor started committing afresh

C:\>oggenc.postrc3 "D:\share\src\First Time\wav\track15.wav"  --
output="D:\share\src\First Time\ogg\Battle Royal.ogg"

Opening with wav module: WAV file reader
Couldn't create directory "D:": Permission denied
ERROR: Could not create required subdirectories for output 
filename "D:\share\src\First Time\ogg\Battle Royal.ogg"

the same error happens when I try to do the same at D:\ . However, when I run 
the same command line from D:\cvs (an unrelated directory), I get the error

D:\cvs>oggenc.postrc3 "D:\share\src\First Time\wav\track15.wav"  --
output="D:\share\src\First Time\ogg\Battle Royal.ogg"
Opening with wav module: WAV file reader
Couldn't create directory "D:": File exists
ERROR: Could not create required subdirectories for output 
filename "D:\share\src\First Time\ogg\Battle Royal.ogg"

I'd bet this has something to do with the autocreate directory code that 
Michael added; could this be tweaked to not try and overwrite the root 
directory when using absolute paths?