reg2bat - Registration Entries to Batch

A simple CL tool that converts .reg to .bat to skip the prompt and implement it better into automations (e.g., into a image as RunOnce file) and overall more flexibility. I used Python for it, as I need a better understanding of it for school reasons.

Example output:

Features

reg2bat converts the whole exported computer registration entry file (280 MB (294,215,422 bytes)) within 3.88 seconds (output removed) - remove the comments from the time module and start/end line to test it yourself. It replaces all root keys with their shorted version:

roots = {
    "HKEY_CLASSES_ROOT": "HKCR",
    "HKEY_CURRENT_CONFIG": "HKCC",
    "HKEY_CURRENT_USER": "HKCU",
    "HKEY_DYN_DATA": "HKDD",  #used in W95, W98, WME
    "HKEY_LOCAL_MACHINE": "HKLM",
    "HKEY_USERS": "HKU"
    #"HKEY_PERFORMANCE_DATA": "HKPD" #WNT
}

wikipedia | Root keys
winreg | nf-winreg-regquerymultiplevaluesa

It supports:

• REG_NONE - No defined type
• REG_SZ - UTF-16LE string
• REG_EXPAND_SZ - Expandable UTF-16LE string with env vars
• REG_BINARY - Arbitrary binary data
• REG_DWORD / REG_DWORD_LITTLE_ENDIAN - 32-bit unsigned integer
• REG_DWORD_BIG_ENDIAN - 32-bit unsigned integer
• REG_LINK - Unicode symbolic link to another key
• REG_MULTI_SZ - List of UTF-16LE strings (double NUL-terminated)
• REG_RESOURCE_LIST - Hardware resource list
• REG_FULL_RESOURCE_DESCRIPTOR - Hardware resource descriptor
• REG_RESOURCE_REQUIREMENTS_LIST - Hardware resource requirements list
• REG_QWORD / REG_QWORD_LITTLE_ENDIAN - 64-bit integer

sysinfo | registry-value-types
wikipedia | Keys and values

Usage

.\reg2bat.py input.reg output.bat

Requirements

Python 3.x