diff --git a/AMI_PFAT_Extract.py b/AMI_PFAT_Extract.py
index 8a0bbc5..1ce55f9 100644
--- a/AMI_PFAT_Extract.py
+++ b/AMI_PFAT_Extract.py
@@ -7,12 +7,11 @@ AMI BIOS Guard Extractor
 Copyright (C) 2018-2022 Plato Mavropoulos
 """
 
-title = 'AMI BIOS Guard Extractor v4.0_a6'
+title = 'AMI BIOS Guard Extractor v4.0_a7'
 
 import os
 import re
 import sys
-import shutil
 import ctypes
 
 # Stop __pycache__ generation
@@ -20,7 +19,7 @@ sys.dont_write_bytecode = True
 
 from common.externals import get_bgs_tool
 from common.num_ops import get_ordinal
-from common.path_ops import get_safe_name
+from common.path_ops import safe_name, make_dirs
 from common.patterns import PAT_AMI_PFAT
 from common.struct_ops import get_struct, char, uint8_t, uint16_t, uint32_t
 from common.system import script_init, argparse_init, printer
@@ -139,7 +138,7 @@ def get_ami_pfat(input_buffer):
     return match, buffer
 
 def get_file_name(index, title):
-    return get_safe_name('%0.2d -- %s' % (index, title))
+    return safe_name('%0.2d -- %s' % (index, title))
 
 def parse_bg_script(script_data, padding):
     is_opcode_div = len(script_data) % 8 == 0
@@ -226,9 +225,7 @@ def parse_pfat_file(buffer, output_path, padding):
     
     extract_path = os.path.join(output_path + '_extracted')
     
-    if os.path.isdir(extract_path): shutil.rmtree(extract_path)
-    
-    os.mkdir(extract_path)
+    make_dirs(extract_path, delete=True)
     
     block_all,block_off,file_count = parse_pfat_hdr(buffer, padding)
 
diff --git a/AMI_UCP_Extract.py b/AMI_UCP_Extract.py
index 32c4ae2..ae2587e 100644
--- a/AMI_UCP_Extract.py
+++ b/AMI_UCP_Extract.py
@@ -7,16 +7,14 @@ AMI UCP BIOS Extractor
 Copyright (C) 2021-2022 Plato Mavropoulos
 """
 
-title = 'AMI UCP BIOS Extractor v2.0_a8'
+title = 'AMI UCP BIOS Extractor v2.0_a9'
 
 import os
 import re
 import sys
-import shutil
 import struct
 import ctypes
 import contextlib
-from pathlib import Path, PurePath
 
 # Stop __pycache__ generation
 sys.dont_write_bytecode = True
@@ -24,7 +22,7 @@ sys.dont_write_bytecode = True
 from common.a7z_comp import a7z_decompress, is_7z_supported
 from common.checksums import get_chk_16
 from common.efi_comp import efi_decompress, is_efi_compressed
-from common.path_ops import get_comp_path, get_safe_name, get_safe_path
+from common.path_ops import agnostic_path, safe_name, safe_path, make_dirs
 from common.patterns import PAT_AMI_UCP, PAT_INTEL_ENG
 from common.struct_ops import get_struct, char, uint8_t, uint16_t, uint32_t
 from common.system import script_init, argparse_init, printer
@@ -215,9 +213,7 @@ def ucp_extract(buffer, out_path, ucp_tag='@UAF', padding=0, is_checksum=False):
     
     extract_path = os.path.join(out_path + '_extracted')
     
-    if os.path.isdir(extract_path): shutil.rmtree(extract_path)
-    
-    os.mkdir(extract_path)
+    make_dirs(extract_path, delete=True)
     
     uaf_hdr = get_struct(buffer, 0, UafHeader) # Parse @UAF|@HPU Header Structure
     
@@ -283,13 +279,13 @@ def uaf_extract(buffer, extract_path, mod_info, padding=0, is_checksum=False, na
         printer('Note: Detected new AMI UCP Module %s (%s) in @NAL!' % (uaf_tag, nal_dict[uaf_tag][1]), padding + 4, pause=True)
     
     # Generate @UAF|@HPU Module File name, depending on whether decompression will be required
-    uaf_sname = get_safe_name(uaf_name + ('.temp' if is_comp else uaf_fext))
+    uaf_sname = safe_name(uaf_name + ('.temp' if is_comp else uaf_fext))
     if uaf_tag in nal_dict:
-        uaf_npath = get_safe_path(extract_path, nal_dict[uaf_tag][0])
-        Path.mkdir(Path(uaf_npath), parents=True, exist_ok=True)
-        uaf_fname = get_safe_path(uaf_npath, uaf_sname)
+        uaf_npath = safe_path(extract_path, nal_dict[uaf_tag][0])
+        make_dirs(uaf_npath, exist_ok=True)
+        uaf_fname = safe_path(uaf_npath, uaf_sname)
     else:
-        uaf_fname = get_safe_path(extract_path, uaf_sname)
+        uaf_fname = safe_path(extract_path, uaf_sname)
     
     if is_checksum: chk16_validate(uaf_data_all, uaf_tag, padding + 4)
     
@@ -387,15 +383,15 @@ def uaf_extract(buffer, extract_path, mod_info, padding=0, is_checksum=False, na
             
             printer(info_tag + ' : ' + info_value, padding + 8, False) # Print @NAL Module Tag-Path Info
             
-            info_part = PurePath(get_comp_path(info_value)).parts # Split OS agnostic path in parts
+            info_part = agnostic_path(info_value).parts # Split OS agnostic path in parts
             info_path = to_string(info_part[1:-1], os.sep) # Get path without drive/root or file
             info_name = info_part[-1] # Get file from last path part
             
             nal_dict[info_tag] = (info_path,info_name) # Assign a file path & name to each Tag
     
     # Parse Insyde BIOS @UAF|@HPU Module (@INS)
-    if uaf_tag == '@INS' and is_7z_supported(uaf_fname):
-        ins_dir = os.path.join(extract_path, get_safe_name(uaf_tag + '_nested-SFX')) # Generate extraction directory
+    if uaf_tag == '@INS' and is_7z_supported(uaf_fname, padding + 4):
+        ins_dir = os.path.join(extract_path, safe_name(uaf_tag + '_nested-SFX')) # Generate extraction directory
         
         printer('Insyde BIOS 7z SFX Archive:', padding + 4)
         
@@ -406,7 +402,7 @@ def uaf_extract(buffer, extract_path, mod_info, padding=0, is_checksum=False, na
     pfat_match,pfat_buffer = get_ami_pfat(uaf_data_raw)
     
     if pfat_match:
-        pfat_dir = os.path.join(extract_path, get_safe_name(uaf_name))
+        pfat_dir = os.path.join(extract_path, safe_name(uaf_name))
         
         parse_pfat_file(pfat_buffer, pfat_dir, padding + 4)
         
@@ -422,7 +418,7 @@ def uaf_extract(buffer, extract_path, mod_info, padding=0, is_checksum=False, na
     
     # Parse Nested AMI UCP Structure
     if nested_uaf_off:
-        uaf_dir = os.path.join(extract_path, get_safe_name(uaf_tag + '_nested-UCP')) # Generate extraction directory
+        uaf_dir = os.path.join(extract_path, safe_name(uaf_tag + '_nested-UCP')) # Generate extraction directory
         
         ucp_extract(nested_uaf_bin, uaf_dir, nested_uaf_tag, padding + 4, is_checksum) # Call recursively
         
diff --git a/Dell_PFS_Extract.py b/Dell_PFS_Extract.py
index b679fdb..2e0610f 100644
--- a/Dell_PFS_Extract.py
+++ b/Dell_PFS_Extract.py
@@ -7,14 +7,13 @@ Dell PFS Update Extractor
 Copyright (C) 2018-2022 Plato Mavropoulos
 """
 
-title = 'Dell PFS Update Extractor v6.0_a5'
+title = 'Dell PFS Update Extractor v6.0_a6'
 
 import os
 import io
 import sys
 import lzma
 import zlib
-import shutil
 import ctypes
 import contextlib
 
@@ -22,7 +21,7 @@ import contextlib
 sys.dont_write_bytecode = True
 
 from common.checksums import get_chk_8_xor
-from common.path_ops import get_safe_name
+from common.path_ops import safe_name, make_dirs
 from common.patterns import PAT_DELL_HDR, PAT_DELL_FTR, PAT_DELL_PKG
 from common.struct_ops import get_struct, char, uint8_t, uint16_t, uint32_t, uint64_t
 from common.system import script_init, argparse_init, printer
@@ -243,13 +242,10 @@ def pfs_section_parse(zlib_data, zlib_start, output_path, pfs_name, pfs_index, p
     printer('Extracting Dell PFS %d >%s > %s' % (pfs_index, pfs_name, section_name), padding)
     
     # Set PFS ZLIB Section extraction sub-directory path
-    section_path = os.path.join(output_path, get_safe_name(section_name))
+    section_path = os.path.join(output_path, safe_name(section_name))
     
-    # Delete existing extraction sub-directory (not in recursions)
-    if os.path.isdir(section_path) and not is_rec: shutil.rmtree(section_path)
-    
-    # Create extraction sub-directory
-    if not os.path.isdir(section_path): os.makedirs(section_path)
+    # Create extraction sub-directory and delete old (if present, not in recursions)
+    make_dirs(section_path, delete=(not is_rec), parents=True, exist_ok=True)
     
     # Store the compressed zlib stream start offset
     compressed_start = zlib_start + 0xB
@@ -406,7 +402,7 @@ def pfs_extract(buffer, pfs_index, pfs_name, pfs_count, output_path, pfs_padd, i
         name_start = info_start + PFS_INFO_LEN + PFS_NAME_LEN # PFS Entry's FileName start offset
         name_size = entry_info_mod.CharacterCount * 2 # PFS Entry's FileName buffer total size
         name_data = filename_info[name_start:name_start + name_size] # PFS Entry's FileName buffer
-        entry_name = get_safe_name(name_data.decode('utf-16').strip()) # PFS Entry's FileName value
+        entry_name = safe_name(name_data.decode('utf-16').strip()) # PFS Entry's FileName value
         
         # Show PFS FileName Structure info
         if is_structure:
@@ -443,7 +439,7 @@ def pfs_extract(buffer, pfs_index, pfs_name, pfs_count, output_path, pfs_padd, i
                 
                 # As Nested PFS Entry Name, we'll use the actual PFS File Name
                 # Replace common Windows reserved/illegal filename characters
-                entry_name = get_safe_name(entry_info.FileName.decode('utf-8').strip('.exe'))
+                entry_name = safe_name(entry_info.FileName.decode('utf-8').strip('.exe'))
                 
                 # As Nested PFS Entry Version, we'll use the actual PFS File Version
                 entry_version = entry_info.FileVersion.decode('utf-8')
@@ -537,7 +533,7 @@ def pfs_extract(buffer, pfs_index, pfs_name, pfs_count, output_path, pfs_padd, i
                 sub_pfs_name = ' %s v%s' % (info_all[pfs_count - 2][1], info_all[pfs_count - 2][2]) if info_all else ' UNKNOWN'
                 
                 # Set the sub-PFS output path (create sub-folders for each sub-PFS and its ZLIB sections)
-                sub_pfs_path = os.path.join(output_path, str(pfs_count) + get_safe_name(sub_pfs_name))
+                sub_pfs_path = os.path.join(output_path, str(pfs_count) + safe_name(sub_pfs_name))
                 
                 # Recursively call the PFS ZLIB Section Parser function for the sub-PFS Volume (pfs_index = pfs_count)
                 pfs_section_parse(entry_data, offset, sub_pfs_path, sub_pfs_name, pfs_count, pfs_count, True, pfs_padd + 4, is_structure, is_advanced)
@@ -844,7 +840,7 @@ def chk_pfs_ftr(footer_buffer, data_buffer, data_size, text, padding, is_structu
 def pfs_file_write(bin_buff, bin_name, bin_type, full_name, out_path, padding, is_structure=True, is_advanced=True):
     # Store Data/Metadata Signature (advanced users only)
     if bin_name.startswith('sign'):
-        final_name = '%s.%s.sig' % (get_safe_name(full_name), bin_name.split('_')[1])
+        final_name = '%s.%s.sig' % (safe_name(full_name), bin_name.split('_')[1])
         final_path = os.path.join(out_path, final_name)
         
         with open(final_path, 'wb') as pfs_out: pfs_out.write(bin_buff) # Write final Data/Metadata Signature
@@ -857,7 +853,7 @@ def pfs_file_write(bin_buff, bin_name, bin_type, full_name, out_path, padding, i
     # Some Data may be Text or XML files with useful information for non-advanced users
     is_text,final_data,file_ext,write_mode = bin_is_text(bin_buff, bin_type, bin_name == 'meta', padding, is_structure, is_advanced)
     
-    final_name = '%s%s' % (get_safe_name(full_name), bin_ext[:-4] + file_ext if is_text else bin_ext)
+    final_name = '%s%s' % (safe_name(full_name), bin_ext[:-4] + file_ext if is_text else bin_ext)
     final_path = os.path.join(out_path, final_name)
     
     with open(final_path, write_mode) as pfs_out: pfs_out.write(final_data) # Write final Data/Metadata Payload
diff --git a/README.md b/README.md
index 8873988..2748655 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,7 @@ PyInstaller can build/freeze/compile the utility at all three supported platform
 
 4. Build/Freeze/Compile:
 
-> pyinstaller --noupx --onefile \<path-to-project\>\/Dell_PFS_Extract.py
+> pyinstaller --add-data="external/*;external/" --noupx --onefile \<path-to-project\>\/Dell_PFS_Extract.py
 
 You should find the final utility executable at "dist" folder
 
@@ -121,7 +121,7 @@ PyInstaller can build/freeze/compile the utility at all three supported platform
 
 4. Build/Freeze/Compile:
 
-> pyinstaller --noupx --onefile \<path-to-project\>\/AMI_UCP_Extract.py
+> pyinstaller --add-data="external/*;external/" --noupx --onefile \<path-to-project\>\/AMI_UCP_Extract.py
 
 You should find the final utility executable at "dist" folder
 
@@ -181,7 +181,7 @@ PyInstaller can build/freeze/compile the utility at all three supported platform
 
 4. Build/Freeze/Compile:
 
-> pyinstaller --noupx --onefile \<path-to-project\>\/AMI_PFAT_Extract.py
+> pyinstaller --add-data="external/*;external/" --noupx --onefile \<path-to-project\>\/AMI_PFAT_Extract.py
 
 You should find the final utility executable at "dist" folder
 
diff --git a/common/a7z_comp.py b/common/a7z_comp.py
index 7226015..99de48a 100644
--- a/common/a7z_comp.py
+++ b/common/a7z_comp.py
@@ -1,10 +1,14 @@
 #!/usr/bin/env python3
 #coding=utf-8
 
+"""
+Copyright (C) 2022 Plato Mavropoulos
+"""
+
 import os
 import subprocess
 
-from common.path_ops import get_script_dir
+from common.path_ops import project_root, safe_path
 from common.system import get_os_ver
 from common.system import printer
 
@@ -12,29 +16,27 @@ from common.system import printer
 def get_7z_path(static=False):
     exec_name = '7z.exe' if get_os_ver()[1] else ('7zzs' if static else '7zz')
     
-    exec_path = os.path.join(get_script_dir(), '..', 'external', exec_name)
-    
-    return exec_path
+    return safe_path(project_root(), ['external',exec_name])
 
 # Check if file is 7z supported
-def is_7z_supported(in_path, static=False):
+def is_7z_supported(in_path, padding=0, static=False):
     try:
         subprocess.run([get_7z_path(static), 't', in_path, '-bso0', '-bse0', '-bsp0'], check=True)
-    
     except:
+        printer('Error: 7-Zip could not check support for file %s!' % in_path, padding)
+        
         return False
     
     return True
 
 # Archive decompression via 7-Zip
-def a7z_decompress(in_path, out_path, in_name, padding, static=False):
+def a7z_decompress(in_path, out_path, in_name, padding=0, static=False):
     if not in_name: in_name = 'archive'
     
     try:
         subprocess.run([get_7z_path(static), 'x', '-aou', '-bso0', '-bse0', '-bsp0', '-o' + out_path, in_path], check=True)
         
         if not os.path.isdir(out_path): raise Exception('EXTRACT_DIR_MISSING')
-    
     except:
         printer('Error: 7-Zip could not extract %s file %s!' % (in_name, in_path), padding)
         
diff --git a/common/checksums.py b/common/checksums.py
index ea150e9..3e958ab 100644
--- a/common/checksums.py
+++ b/common/checksums.py
@@ -1,6 +1,10 @@
 #!/usr/bin/env python3
 #coding=utf-8
 
+"""
+Copyright (C) 2022 Plato Mavropoulos
+"""
+
 # Get Checksum 16-bit
 def get_chk_16(data, value=0, order='little'):
     for idx in range(0, len(data), 2):
diff --git a/common/efi_comp.py b/common/efi_comp.py
index ed18cf5..97c05f9 100644
--- a/common/efi_comp.py
+++ b/common/efi_comp.py
@@ -1,10 +1,14 @@
 #!/usr/bin/env python3
 #coding=utf-8
 
+"""
+Copyright (C) 2022 Plato Mavropoulos
+"""
+
 import os
 import subprocess
 
-from common.path_ops import get_script_dir
+from common.path_ops import project_root, safe_path
 from common.system import get_os_ver
 from common.system import printer
 
@@ -25,22 +29,19 @@ def is_efi_compressed(data, strict=True):
     return check_diff and check_size
 
 # Get TianoCompress path
-def tianocompress_path():
+def get_tiano_path():
     exec_name = 'TianoCompress' + ('.exe' if get_os_ver()[1] else '')
     
-    exec_path = os.path.join(get_script_dir(), '..', 'external', exec_name)
-    
-    return exec_path
+    return safe_path(project_root(), ['external',exec_name])
 
 # EFI/Tiano Decompression via TianoCompress
-def efi_decompress(in_path, out_path, padding, comp_type='--uefi'):
+def efi_decompress(in_path, out_path, padding=0, comp_type='--uefi'):
     try:
-        subprocess.run([tianocompress_path(), '-d', in_path, '-o', out_path, '-q', comp_type], check=True, stdout=subprocess.DEVNULL)
+        subprocess.run([get_tiano_path(), '-d', in_path, '-o', out_path, '-q', comp_type], check=True, stdout=subprocess.DEVNULL)
         
         with open(in_path, 'rb') as file: _,size_orig = get_compress_sizes(file.read())
         
         if os.path.getsize(out_path) != size_orig: raise Exception('EFI_DECOMPRESS_ERROR')
-        
     except:
         printer('Error: TianoCompress could not extract file %s!' % in_path, padding)
         
diff --git a/common/externals.py b/common/externals.py
index 674b65f..89d6a9e 100644
--- a/common/externals.py
+++ b/common/externals.py
@@ -1,6 +1,10 @@
 #!/usr/bin/env python3
 #coding=utf-8
 
+"""
+Copyright (C) 2022 Plato Mavropoulos
+"""
+
 # https://github.com/allowitsme/big-tool by Dmitry Frolov
 def get_bgs_tool():
     try:
diff --git a/common/num_ops.py b/common/num_ops.py
index 35e8044..c37e4d7 100644
--- a/common/num_ops.py
+++ b/common/num_ops.py
@@ -1,8 +1,11 @@
 #!/usr/bin/env python3
 #coding=utf-8
 
-# https://leancrew.com/all-this/2020/06/ordinals-in-python/ by Dr. Drang
+"""
+Copyright (C) 2022 Plato Mavropoulos
+"""
 
+# https://leancrew.com/all-this/2020/06/ordinals-in-python/ by Dr. Drang
 def get_ordinal(number):
     s = ('th', 'st', 'nd', 'rd') + ('th',) * 10
     
diff --git a/common/path_ops.py b/common/path_ops.py
index 0254a1c..d08cfb1 100644
--- a/common/path_ops.py
+++ b/common/path_ops.py
@@ -1,68 +1,89 @@
 #!/usr/bin/env python3
 #coding=utf-8
 
+"""
+Copyright (C) 2022 Plato Mavropoulos
+"""
+
 import os
 import re
 import sys
-import inspect
-from pathlib import Path
+import shutil
+from pathlib import Path, PurePath
 
 from common.text_ops import to_string
 
 # Fix illegal/reserved Windows characters
-def get_safe_name(in_name):
+def safe_name(in_name):
     name_repr = repr(in_name).strip("'")
 
     return re.sub(r'[\\/:"*?<>|]+', '_', name_repr)
 
 # Check and attempt to fix illegal/unsafe OS path traversals
-def get_safe_path(base_path, user_paths):
+def safe_path(base_path, user_paths):
     # Convert base path to absolute path
-    base_path = get_real_path(base_path)
+    base_path = real_path(base_path)
     
-    # Convert user path(s) to absolute path with OS separators
+    # Merge user path(s) to string with OS separators
     user_path = to_string(user_paths, os.sep)
     
     # Create target path from base + requested user path
-    target_path = get_norm_path(base_path, user_path)
+    target_path = norm_path(base_path, user_path)
     
     # Check if target path is OS illegal/unsafe
     if is_safe_path(base_path, target_path):
         return target_path
     
     # Re-create target path from base + leveled/safe illegal "path" (now file)
-    nuked_path = get_norm_path(base_path, get_safe_name(user_path))
+    nuked_path = norm_path(base_path, safe_name(user_path))
     
     # Check if illegal path leveling worked
     if is_safe_path(base_path, nuked_path):
         return nuked_path
     
-    # Still illegal, create fallback base path + placeholder file
-    failed_path = get_norm_path(base_path, 'illegal_path_traversal')
-    
-    return failed_path
+    # Still illegal, raise exception to halt execution
+    raise Exception(f'ILLEGAL_PATH_TRAVERSAL: {user_path}')
 
 # Check for illegal/unsafe OS path traversal
 def is_safe_path(base_path, target_path):
-    base_path = get_real_path(base_path)
+    base_path = real_path(base_path)
     
-    target_path = get_real_path(target_path)
+    target_path = real_path(target_path)
     
     common_path = os.path.commonpath((base_path, target_path))
     
     return base_path == common_path
 
 # Create normalized base path + OS separator + user path
-def get_norm_path(base_path, user_path):
+def norm_path(base_path, user_path):
     return os.path.normpath(base_path + os.sep + user_path)
 
 # Get absolute path, resolving any symlinks
-def get_real_path(in_path):
-    return str(Path(in_path).resolve())
+def real_path(in_path):
+    return os.path.realpath(in_path)
 
-# Get Windows/Posix OS compatible path
-def get_comp_path(in_path):
-    return in_path.replace('\\', os.sep)
+# Get Windows/Posix OS agnostic path
+def agnostic_path(in_path):
+    return PurePath(in_path.replace('\\', os.sep))
+
+# Get absolute parent of path
+def path_parent(in_path):
+    return Path(in_path).parent.absolute()
+
+# Check if path is absolute
+def is_path_absolute(in_path):
+    return Path(in_path).is_absolute()
+
+# Create folder(s), controlling parents, existence and prior deletion
+def make_dirs(in_path, parents=True, exist_ok=False, delete=False):
+    if delete: del_dirs(in_path)
+    
+    Path.mkdir(Path(in_path), parents=parents, exist_ok=exist_ok)
+
+# Delete folder(s), if present
+def del_dirs(in_path):
+    if Path(in_path).is_dir():
+        shutil.rmtree(in_path)
 
 # Walk path to get all files
 def get_path_files(in_path):
@@ -74,20 +95,18 @@ def get_path_files(in_path):
     
     return path_files
 
-# Get parent of path
-def get_path_parent(in_path):
-    return Path(in_path).parent.absolute()
-
 # Get absolute file path of argparse object
 def get_argparse_path(argparse_path):
-    script_dir = get_path_parent(get_script_dir())
-    
     if not argparse_path:
-        absolute_path = script_dir # Use input file directory if no user path is specified
+        # Use runtime directory if no user path is specified
+        absolute_path = runtime_root()
     else:
-        # Check if user specified path is absolute, otherwise convert it to input file relative
-        if Path(argparse_path).is_absolute(): absolute_path = argparse_path
-        else: absolute_path = os.path.join(script_dir, argparse_path)
+        # Check if user specified path is absolute
+        if is_path_absolute(argparse_path):
+            absolute_path = argparse_path
+        # Otherwise, make it runtime directory relative
+        else:
+            absolute_path = safe_path(runtime_root(), argparse_path)
     
     return absolute_path
 
@@ -104,22 +123,31 @@ def process_input_files(argparse_args, sys_argv=None):
         else:
             input_files = [file.name for file in argparse_args.files]
         
-        output_path = get_argparse_path(argparse_args.output_dir or argparse_args.input_dir)
+        # Set output path via argparse Output Path or argparse Input Path or first input file Path
+        output_path = argparse_args.output_dir or argparse_args.input_dir or path_parent(input_files[0])
     else:
         # Script w/o parameters
         input_path_user = input('\nEnter input directory path: ')
         input_path_full = get_argparse_path(input_path_user) if input_path_user else ''
         input_files = get_path_files(input_path_full)
         
-        output_path = get_argparse_path(input('\nEnter output directory path: '))
+        output_path = input('\nEnter output directory path: ')
     
-    return input_files, output_path
+    output_path_final = get_argparse_path(output_path)
+    
+    return input_files, output_path_final
 
-# https://stackoverflow.com/a/22881871 by jfs
-def get_script_dir():
+# Get project's root directory
+def project_root():
+    root = Path(__file__).parent.parent
+    
+    return real_path(root)
+
+# Get runtime's root directory
+def runtime_root():
     if getattr(sys, 'frozen', False):
-        path = sys.executable
+        root = Path(sys.executable).parent
     else:
-        path = inspect.getabsfile(get_script_dir)
-
-    return os.path.dirname(get_real_path(path))
+        root = project_root()
+    
+    return real_path(root)
diff --git a/common/patterns.py b/common/patterns.py
index 2e416f8..d66f268 100644
--- a/common/patterns.py
+++ b/common/patterns.py
@@ -1,6 +1,10 @@
 #!/usr/bin/env python3
 #coding=utf-8
 
+"""
+Copyright (C) 2022 Plato Mavropoulos
+"""
+
 import re
 
 PAT_AMI_PFAT = re.compile(b'_AMIPFAT.AMI_BIOS_GUARD_FLASH_CONFIGURATIONS', re.DOTALL)
diff --git a/common/struct_ops.py b/common/struct_ops.py
index bd418da..31c6e5b 100644
--- a/common/struct_ops.py
+++ b/common/struct_ops.py
@@ -1,7 +1,9 @@
 #!/usr/bin/env python3
 #coding=utf-8
 
-# https://github.com/skochinsky/me-tools/blob/master/me_unpack.py by Igor Skochinsky
+"""
+Copyright (C) 2022 Plato Mavropoulos
+"""
 
 import ctypes
 
@@ -11,6 +13,7 @@ uint16_t = ctypes.c_ushort
 uint32_t = ctypes.c_uint
 uint64_t = ctypes.c_uint64
 
+# https://github.com/skochinsky/me-tools/blob/master/me_unpack.py by Igor Skochinsky
 def get_struct(buffer, start_offset, class_name, param_list=None):
     if param_list is None: param_list = []
 
diff --git a/common/system.py b/common/system.py
index 8fcf156..3094ea7 100644
--- a/common/system.py
+++ b/common/system.py
@@ -1,6 +1,10 @@
 #!/usr/bin/env python3
 #coding=utf-8
 
+"""
+Copyright (C) 2022 Plato Mavropoulos
+"""
+
 import sys
 import ctypes
 import argparse
diff --git a/common/text_ops.py b/common/text_ops.py
index dbb40a4..4a8ea41 100644
--- a/common/text_ops.py
+++ b/common/text_ops.py
@@ -1,6 +1,10 @@
 #!/usr/bin/env python3
 #coding=utf-8
 
+"""
+Copyright (C) 2022 Plato Mavropoulos
+"""
+
 # Generate padding (spaces or tabs)
 def padder(padd_count, tab=False):
     return ('\t' if tab else ' ') * padd_count