. NET crack of the sky contract to ensure the right software

This tutorial can only be used for study studies and not for any commercial use. If used, please purchase genuine, respect for the work of others and intellectual property rights!

The sky contracted the right to assist the construction of the library software is called Zheng classmate development, he said, "the sky produced, will be a boutique", although I am engaged in surveying and mapping industry, but has not contacted the contractor software, so can not evaluate its merits and demerits. The students also out of a Excel report master, feeling is very practical. The current version is free.

01. Download and install

During the installation process, I saw the progress bar wrote a What COM, this is set to be Microsoft, installed after a check, part is C #, part of C + +, I think this classmate also used Npoi and mo.excel, I thought he might be using Microsoft, if the client did not install Microsoft, then use Npoi, good ideas, thoughtful, worth learning. This installation interface is not too gorgeous.

02. Trial Registration

Install the first thing is to use, if the free version will not be cracked must. This software is still very expensive, casually enter the activation code activated when the "Activation code format is incorrect" prompt.

03. Retrace

Retrace is a good way to do it. Check the registration of their judgment, the activation code must be 23 (0x17) Ah, certainly the author of 23 has a unique feeling, haha! Then call the Get_txt function and return a string, which is too obvious.

Here's an interesting thing: there are two ways to compile in two different anti-compilation software.

04. Initial Burst

I will text the return value of direct violence modified to "commercial license has been successfully activated", although the activation interface is successful, but a closed activation window, CAD will eject fatal error, so, this brute force hack is unscientific and, unstable. We need to go into the inside of the software as much as possible.

05. In-depth analysis

I analyzed the registration window is used in the location, in addition to the initialization and activation of the use, in the Method_0 method is also used, and then expand a look, incredibly every operation has been checked for permission. Come on, let's open it up.

06. Crack Success

function before the last check is this function, so, to change it, the basic is foolproof.

This tutorial can only be used for study studies and not for any commercial use. If used, please purchase genuine, respect for the work of others and intellectual property rights!

. NET crack of the sky contract to ensure the right software