Advanced CheckSum Verifier - MD5 and SFV checksum utility for Windows home
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Advanced CheckSum Verifier - MD5 and SFV checksum utility for Windows
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Advanced CheckSum Verifier - MD5 and SFV checksum utility for WindowsAdvanced CheckSum Verifier (ACSV) v1.5.0
Comprehensive SFV and MD5 checksum utility with GUI for Windows 95/98/Me/NT/2000/XP/2003.

Introduction

What is the checksum? This is an value calculated from a content of file by special algorithm. This algorithm is designed so that change even only one bit in the file data will cause the absolutely different checksum value.

Another good feature of the checksums is the fixed length of the checksum irrespective of the size of an source file. Unimportantly, what was the size of source file - 1 kilobyte or 100 megabytes, the length of the checksum always will be small. For example, 32 bits for CRC32 or 128 bits for MD5.

These features of the checksums may be used for revealing the damaged files or compare two files for identity. The good form considers granting to users of your files also the checksums of these files that they could check up integrity of files. Advanced CheckSum Verifier will help you in this. And presence of freeware XCSV utility will allow your partners to easily check up integrity of received files. The link to XCSV you can find out on main site page.

The Advanced CheckSum Verifier is an handy and fast windows utility for verifying integrity of files by using the CRC32 or MD5 checksum calculation algorithms for Windows users.

It will allow you to verify the accuracy of your data after you burn a CD or transfer a files over a network. Adding an little checksum file to your data files will allow in further easily to verify their integrity at any time.

This program is especially effective if you have many files, many subdirectories, or both. And it's extremely fast and lightweight.

Uses checksum files fully compatible with popular md5sum utility for MD5 and SFV (Simple File Verification) for CRC32. And hence may be used as GUI driven replacement for MD5SUM utility by Windows users.


Features

Recursive processing of subfolders
The program can recursively enter into all subfolders of the specified folder and calculate checksums of files in these subfolders. This feature allows to quickly calculate the checksums of files inside the ramified folders tree, for example on the entire CD, or on the FTP-site.
Setting a mask for selection of files for processing
You can set a mask of files for processing to not waste time on calculation of the checksums of unnecessary files.
Five ways of creating the checksum files
You may keep in one file the checksums for entire folders tree. You may create the separate checksums file for each folder. Yau may even create a separate checksums file for each file.
The detailed protocol of processing
The all information on a processing is accessible as the log, including values of the checksums of files. You may copy the entire log or its part to clipboard for further use. For the best perception of the information the warnings are displayed by different color in dependence from their importance.
Supporting the MD5SUM (Message Digest number 5) file format
The program create MD5 checksum files in the same format, which is used by the MD5SUM utility - the industry standard for MD5 checksum calculation. This allow easy exchange of the checksum files with another systems and platforms.
Supporting the SFV (Simple File Verification - CRC32) format
The another widely used checksums file format - SFV (Simple File Verification) is used for creation the CRC32 checksum files. This format very popular on the Usenet binary newsgroups and on MP3, MPEG4 exchange networks.
Very small and extremely fast
Written by using only pure WinAPI, the program is very small, has very low memory consumption and instantly start. The using of advanced low-level WinAPI programming techniques allow to extremely fast processing of files.

Program appearance under Windows XP Program just started During verifying Calculation is done Popup menu System menu Options dialog box About dialog box


Requirements

  • any system running Windows 95/98/ME/NT4.0/2000/XP.
  • less than 0.5 Megabytes of free space on hard disk.

Download

acsvi.exe - EXE-file with installer.

Installation

Step-by-step installation instructions.

Documentation

Online manuals


License

All copyrights to Advanced CheckSum Verifier are exclusively owned by the author - Irnis I.Haliullin.

Anyone may use ACSV during a test period of 30 days. Following this test period of 30 days or less, if you wish to continue to use ACSV, you must register.

Once registered, the user is granted a non-exclusive license to use ACSV according the license type, for any legal purpose. This license will be valid for all further versions of ACSV. Also registered users will get the free technical support by e-mail.

Personal license allow to personally use ACSV by a single person on one or more workstations (for example, on desktop and on notebook). Personal license is always granted to person, not organizations. Organizations should register for business or site licenses.

Business license allow to use ACSV on number of workstations defined by license quantity. You should purchase so much licenses, on how many workstations are going to install ACSV.

Site license allow to use ACSV on an unlimited number of workstations at the same physical site location. This site location would normally be defined as a single building, but could be considered to be a number of buildings within the same, general, geographical location, such as an industrial estate or small town.

Conditions of distribution

The unregistered version of program may be distributed freely under condition of preservation of constant contents of the distribution kit.


Changes history

6.12.2004ACSV v1.5.0 released.
  - fixed bug causing false warnings.
- into installer/deinstaller added possibility to view logs.
- little redesign of registration form.
30.11.2004ACSV v1.4.0 released.
  - fixed bug causing memory leak on Windows 98.
- fixed bug causing errors on read-only network drivers.
- fixed bug causing empty checksum file name for root folders.
- some cosmetic improvements.
- new installer.
29.01.2003ACSV v1.3.0 released.
  - fixed bug when processing the files > 4Gb.
- added the current processing file indication.
04.11.2002ACSV v1.2.0 released.
  - calculation of total size of files before verifying now is working correctly.
- setting the checksum file name from command line now work.
- the speed of processing is considerably improved.
- improved the visual appearance under Windows XP.
18.10.2002ACSV v1.1.0 released.
  - the history of folders is added.
- the online help is expanded and corrected.
- the install/uninstall is improved.
30.09.2002ACSV v1.0.0 released.
  - the Advanced CheckSum Verifier has been released as Shareware.
19.09.2002ACSV v0.9.6 released.
  - the help file is added.
- the installer is added.
- fixed the bug, which not allow to choose the checksum file while running under Windows 95 and NT4.
- added the confirmation dialog before start the verifying with the recursive subfolders processing and one file for entire folders tree mode to avoid the false warnings about files not listed in checksum file.
- if the main window has been minimized, it will restore itself when done processing.
10.09.2002ACSV v0.9.5 released (bugfix).
  - fixed bug, which not allow to work normally because permanent exceptions.
08.09.2002ACSV v0.9.4 released.
  - supporting the command line parameters is added.
- horizontal scrollbar for the log window is added.
- maximizing to full screen is enabled.
10.06.2002ACSV v0.9.3 released.
  - program interface is fully redesigned.
- three new mode of checksum files creation is added.
- estimated counter for time to left is added.
25.04.2002ACSV v0.9.2a updated.
 
11.04.2002ACSV v0.9.2 released.
  - support for SFV files is added.
- detecting new files in folder is added.
30.03.2002ACSV v0.9.1 released.
 First public release
03.03.2002ACSV v0.9.0 released.
 First release for internal purposes

Contact information

Please, send all suggestions, feedbacks and bug reports to this mail irnis@irnis.net.

Last version of the program always can be found to the address: www.irnis.net.


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What is Checksum file?
The CRC32 algorithm
The SFV file format
What is Message Digest?
The MD5 algorithm
The MD5SUM utility
© Last modified: Last modified:    November 30, 2006 

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