MD5 檔案和資料夾比較器用於比較檔在內容中是否相同。可以比較一對檔，也可以比較兩個子資料夾中的所有檔（可選地將檔包括到其子資料夾中）。可以比較資料夾中的檔，以顯示相同的檔案或不同的檔。可獲取資料夾中所有檔（以及可選的子資料夾）及其 MD5 數位簽章的清單。 MD5 檔案和資料夾比較器的工作原理是比較檔的 MD5 數位簽名（使用 MD5 消息摘要演算法）。檔的 MD5 數位簽名是 16 個字節的序列，通常顯示為 16 個十六進位數字，沒有中間空間，例如 4EAE15241AD90F85D038523E9D14DDDB。兩個MD5數位簽名不同的檔在至少一個字節中彼此不同。兩個數位簽名相同的檔在內容上是相同的，除非兩個檔是經過精心構造的，以便具有相同的數位簽名。這種"碰撞"極為罕見，實際上，兩個數位簽名不同的檔本身總是不同的。 以下是此程式的可能用途的範例： 1. 比較檔的兩個版本，因為它們是相同還是不同。 2. 記錄要發送給其他人的一組檔的數位簽名以及這些檔，以便他們可以檢查他們接收的檔是否與發送的檔相同。 3. 如果已將資料夾及其子資料夾備份到某些外部設備，並且稍後希望檢查源資料夾中哪些檔已更改，則您可以將該資料夾與備份進行比較。 4. 如果您有兩個資料夾，每個資料夾都是其他資料夾的備份，您可以使用此程式獲取每個備份資料夾中檔日期的平均值，從而告訴您哪個備份資料夾是最新的。
版本歷史記錄
- 版本 3.45 發佈於 2009-12-09
維護發佈
軟體細節
- 軟體分類： 系統實用程式 > 檔和磁碟管理
- 發佈者： Hermetic Systems
- 軟體性質： 免費試用
- 價格： $19.95
- 版本： 3.45
- 作業系統： windows
終端使用者許可協定
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.