cracking... is it possible

Windows Server 2008 related tips, questions, answers, concerns and more...
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Anish babu
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cracking... is it possible

Post by Anish babu » Thu Dec 10, 2009 12:46 pm

A win xp client os ...used as server ...maxm number of clients acces the system at a time is 10 .....

can we crack the codes and make it unlimited
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Re: cracking... is it possible

Post by ManU » Thu Dec 10, 2009 1:01 pm

Hello Anish,

Thank you for posting in my forum.
I can tell you one solution which describes editing the tcp.sys file manually and more adventurous for Windows XP SP2 machines with a tcpip.sys file of exactly 359,040 bytes, CRC-32 is 8042A9FB, and MD5 is 9F4B36614A0FC234525BA224957DE55C. I didn't yet tested it. I have got it from my web research only.

First you need to find a hex editor.
Even thouh there might be multiple tcpip.sys files in your system, make sure to work with the one in c:\windows\system32\drives\ directory.

To remove the tcpip.sys socket creation limit:
- Backup your original tcpip.sys file before editing please, important !
- In your hex editor, go to offset 4F322 hex (or 324386 decimal).
- Change 0a 00 00 00 to 00 00 0a 00

Done ! The above change does not require editing of the CRC in offset 130 hex (thanks for the clever solution Thomas Wolf Tompkins)
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