anchor.diff:  :: an Microsoft Windows environment.
   ::
   :: Requirements:
  -:: - Oracle SQLPlus which should be supplied with Oracle XE. Make sure sqlplus
  -:: is in the Windows PATH (i.e. sqlplus can be started from any directory).
  +:: - Oracle (download from http://www.oracle.com/technology/software/products/database/xe/index.html) and set SQLPLUS_PROG
  +:: to point to sqlplus.exe.
   :: - WGet (download from http://users.ugent.be/~bpuype/wget/) and set WGET_PROG
   :: to point to wget.exe.
   :: - 7-Zip (download from http://www.7-zip.org/download.html) and set ZIP_PROG
  
positive.code: SET EMB_CMD=emb
  
  SET WGET_OPTS=--no-check-certificate
  
  :: /* The code below should not need to be changed */
  
  SET CD_BASE_DIR=cd /d %~dp0
  SET UPDATED=
  
negative.code: 
  GOTO :EOF
  
  :CLEANUP
  del /F /Q %EXTRACT_FILE%
  rmdir /s /q %EXTRACT_DIR%
  GOTO :EOF
  
  :SUCCESS
  