Program

AS-CRC32 1.20 - Check if a file is intact.

Screenshot of AS-CRC32 1.20

This program can check (with some certainty) whether a file has been modified or damaged, provided that you have calculated the CRC32 value of the file before. The program generates a 32-bit value with the algorithm CRC32 by reading the entire file and making calculations on its contents. CRC is an abbreviation of Cyclic Redundancy Check.

Benefits

• The program can integrate with Windows which means that you can right-click on a file and choose "AS-CRC32" in the menu. (The integration feature is activated from the File menu. This is a non-portable feature.)
• Shows very clearly if the comparison matched or not.
• When you have performed a calculation you can press [CTRL+W] to write a signature file. When you want to check the file you perform a calculation and then pressing [CTRL+R] to read the signature file and the values are compared automatically.
• Also includes calculation of text. (The text is treated as UTF-8.)

Speed Reference: Approximately 280 MB/sec. (Intel Core i3-9100)

> Download AS-CRC32 1.20 (Zip, 1.15 MB)

Revision Date: 2024-04-18.
License: Freeware.
Unicode Support: Yes.
DPI Aware: Per-Monitor (V2).
Program Type: Partly portable, X64.
Operating System(s): Windows 7, 8, 8.1, 10 and 11. (Also the Server versions.)
Language(s): English and Swedish.

This is the program's official website - download the program here to get the latest version/revision. The program is free.

Information regarding the integration feature

You have to run AS-CRC32 as Administrator in order to add/update or remove the integration feature. This can be done by right-clicking on the EXE file. (Note: When you make a larger Windows upgrade, this integration may be cleared, then you need to add it again.)

Portable?

The only thing that is not portable is the integration feature, but this has to be activated manually. The integration feature writes to the registry (the key "HKEY_CLASSES_ROOT").

AS-CRC64 1.20

Also take a look at AS-CRC64 1.20.