Patches Microsoft Access ADP files when the 'AllowBypasskey' setting is set to false. This patch will force it to true, thus allowing the user to hit 'shift' key and bypass startup code as normal with Access.

AllowBypassKeyPatch.py

import argparse
import shutil
import os

def inplace_change(filename, old_string, new_string,debug):
    with open(filename, mode='rb') as file: # b is important -> binary
        fileContent = file.read()
        if old_string in fileContent:
            if debug == False:
                print ('Changing "{old_string}" to "{new_string}"'.format(**locals()))
                fileContent=fileContent.replace(old_string, new_string)
                newfile=open(filename, 'wb')
                newfile.write(fileContent)
                newfile.flush()
                newfile.close()
            else:
                print ('Due to debug, did not change "{old_string}" to "{new_string}"'.format(**locals()))
        else:
            print ('No occurances of "{old_string}" found'.format(**locals()))


parser = argparse.ArgumentParser(description='Checks Access ADP file and patches to allowbypass key')
parser.add_argument('-file','--file',help='File',required=True)
parser.add_argument('-debug','--debug',help='Debug',required=False)
args = vars(parser.parse_args())
debug = False
if args['debug'] != None and args['debug'].upper() == 'TRUE':
    debug = True

filename = args['file']
basefilename = os.path.basename(filename)
workingfilename = os.path.dirname(filename) + os.path.sep + basefilename + '-HACKED' + os.path.splitext(basefilename)[1]

#copy file to working version.
shutil.copyfile(filename, workingfilename)

oldstring = '\x41\x00\x6c\x00\x6c\x00\x6f\x00\x77\x00\x42\x00\x79\x00\x70\x00\x61\x00\x73\x00\x73\x00\x4b\x00\x65\x00\x79\x00\x00\x00\x00\x00'
newstring = '\x41\x00\x6c\x00\x6c\x00\x6f\x00\x77\x00\x42\x00\x79\x00\x70\x00\x61\x00\x73\x00\x73\x00\x4b\x00\x65\x00\x79\x00\xff\xff\xff\xff'

inplace_change(workingfilename, oldstring, newstring, debug)

This has been verified with MSAccess 2010