MD5 文件和文件夹比较器用于比较文件在内容中是否相同。可以比较一对文件，也可以比较两个子文件夹中的所有文件（可选地将文件包括到其子文件夹中）。可以比较文件夹中的文件，以显示相同的文件或不同的文件。可获取文件夹中所有文件（以及可选的子文件夹）及其 MD5 数字签名的清单。 MD5 文件和文件夹比较器的工作原理是比较文件的 MD5 数字签名（使用 MD5 消息摘要算法）。文件的 MD5 数字签名是 16 个字节的序列，通常显示为 16 个十六进制数字，没有中间空间，例如 4EAE15241AD90F85D038523E9D14DDDB。两个MD5数字签名不同的文件在至少一个字节中彼此不同。两个数字签名相同的文件在内容上是相同的，除非两个文件是经过精心构造的，以便具有相同的数字签名。这种"碰撞"极为罕见，实际上，两个数字签名不同的文件本身总是不同的。 以下是此程序的可能用途的示例： 1. 比较文件的两个版本，因为它们是相同还是不同。 2. 记录要发送给其他人的一组文件的数字签名以及这些文件，以便他们可以检查他们接收的文件是否与发送的文件相同。 3. 如果已将文件夹及其子文件夹备份到某些外部设备，并且稍后希望检查源文件夹中哪些文件已更改，则您可以将该文件夹与备份进行比较。 4. 如果您有两个文件夹，每个文件夹都是其他文件夹的备份，您可以使用此程序获取每个备份文件夹中文件日期的平均值，从而告诉您哪个备份文件夹是最新的。
版本历史记录
- 版本 3.45 发布于 2009-12-09
维护发布
软件信息
- 软件分类： 系统实用程序 > 文件和磁盘管理
- 发布者： Hermetic Systems
- 许可： 免费试用
- 价格： $19.95
- 版本： 3.45
- 适用平台： windows
终端用户许可协议
Hermetic Systems is the business name of Peter Meyer, [email protected], the developer of this software, and the owner and maintainer of the Hermetic Systems website at hermetic.ch. The Modified File Backup software ("the Software") consists of the executable file and the other files installed by the installation program mfb_setup.exe obtainable from the Hermetic Systems website. The Software is protected by copyright, which is owned by Hermetic Systems. The Software may be downloaded from the Hermetic Systems website or another authorized download site solely for the purpose of its evaluation with regard to the purchase of a user license. Neither the installation program nor any work derived from it may be distributed further by any means (including via CD or the web) without the permission of the copyright holder. All intellectual property rights related to the Software are owned by Hermetic Systems. You may not rent or lease the Software. You may not modify, translate, reverse engineer, decompile or disassemble the Software or any part thereof or otherwise attempt to derive source code or create derivative works therefrom. You may not remove, alter or destroy any proprietary, trademark or copyright markings or notices contained within the Software. You may not sell or offer for sale any derivative work. Any rights not explicitly granted by Hermetic Systems are reserved. In return for a license fee paid to Hermetic Systems or to one of its authorized representatives or resellers you are granted a license to use the Software in its fully-functional form and you are provided with activation keys for each installation of the Software as follows: (A) If you are a natural person then you receive a single-user license and this entitles you to install, activate and use the Software on a reasonable number of personal computers (laptops and desktops) in your private household or office. (B) If you are an entity other than a natural person (e.g., a corporation) then you must purchase either (a) one or more single-user licenses for each installation, activation and use of the Software (discounts are available) or (b) a site license, which allows multiple installations, activations and uses, and which is expressed in terms of the number of activation keys which may be obtained. (Contact Hermetic Systems for further details.) The function of an activation key is to remove any temporal or functional limitations on a particular installation of the Software. A separate activation key is required for each installation (in other words, an activation key works only on a particular computer). In the event that a later version of the software is released, you may update an installation at no charge by downloading and installing the new version. If you change your computer (or make a major hardware modification) you may need to obtain a new activation key. This can be obtained at no charge via a web page (there is a link in the trial or demo version of the software), provided that, in the opinion of Hermetic Systems, the number and frequency of such new activation keys is not unreasonably excessive. Installation of the Software constitutes an agreement that the Software is provided "as is", without any warranties or guarantees. Hermetic Systems makes every effort to ensure that the software is error-free and performs as stated in the online user manual, but does not guarantee this. You assume responsibility for selecting the Software and using it for your intended purposes. In no event shall Hermetic Systems, its resellers or distributors of the Software be liable for any damages whatsoever arising out of use or inability to use the Software, even if advised of the possibiity of such damages. This software performs file deletion under user control. Hermetic Systems, its resellers and distributors of the Software, will not be responsible for damages of any kind arising from loss of data resulting from unintended deletion of files.