PartCopy
This utility can copy any number of bytes from one file into a new one. Useful if you want to extract sound or data from a location within a file.
PartCopy v1.11.2.4 (Size 517 KB) Freeware

Features:
- Handles files as large as your hard drive.
- Fast.
- Allows you to enter the start position and length in decimal and hexadecimal values.
- Fast track buttons to move to start or end of a file.
- Command-line parameters.
- Contains a hex viewer so you can select start and finish positions from the viewer.
- Hex viewer can display files up to 2GB in size.
- Search for text in the hex viewer.
- Remembers where you last positioned the application window.
- Memorize the last source and/or destination file.
- Memorize the file paths.
- Customize the selectable file types.
- Customize the background colour.
- Drag and drop source file from Explorer.
Installation:
Extract the file PartCopy.exe to a directory anywhere on your PC.
How To Use It:
See the help included within the program.
Screen Shots:
The controls allow you to enter the start position and length in either decimal or hexadecimal values.
Buttons also allow you to make changes like switch to the end of the file.

The hex file viewer is an alternate way to selecting the start and offset positions. It is a great way to visually see the segment of the file you want to copy.

Settings allow you to easily change options to suit your preferences.
Change History:
Expand/Collapse
v1.11.2.4 - 18/06/2010
- Added call to check source file for command-line interface.
v1.10.1.2 - 10/06/2010
- Removed dependency on the GUI interface when invoked via the command-line.
- Added return codes for the command-line interface.
v1.9.0.21 - 16/03/2009
- Removed memory leak caused by FileInfo.
- Fixed problem where hex values were not updated in the main form when selected via the hex viewer.
- Added F1 help to all forms.
- Fixed error where last block of a large file was written incorrectly.
v1.8.2.12 - 08/02/2008
- Changed URL links to use default browser.
- Added XP style manifest.
v1.7.1.10 - 18/02/2007
- Corrected error with CopyFrom when copying large files over 3GB.
- Added support for 64-bit Seek.
v1.6.0.3 - 04/12/2006
- Fixed up command-line.
- Updated help and embedded help.
30/11/2006
- Buffered read/writes (Faster, Less paging).
- Fixed file selection settings.
- Improved processing on start up.
- Fixed number during number entry.
15/10/2006
- Updated URL. Added HTML help.
14/10/2005
- Program created.