Updated usage information.
Added support for .reg files with multiple registry keys. Added support for ANSI .reg files.
Dealt with case insensitivity of Registry export.
Clear additional variables while reading file.
Variable unneeded in this context.
Added support for Windows XP
Allow for case insensitivity in .reg value name.
Small optimizations in .reg parsing.
Removed ANSI / UTF-8 support (not appropriate here -- registry exports should be UTF-16)