USB Duplicator is an application that copies all data from USB drives to a folder, when they are plugged in.
USB Duplicator was created by UnexomWid. It is licensed under the MIT license.
USB Duplicator should NOT be used for any malicious purposes. It was created to be used as a backup solution for personal USB drives.
I am NOT responsible for any type of misuses and/or damages done by this software, and I cannot be held responsible for your actions, whether or not they are malicious. Use this software at your own risk and responsibility.
Note: versions with the suffix R are considered stable releases, while those with the suffix D are considered unstable.
v2.0R - September 4, 2019
USB Duplicator listens for drive activity. When a USB drive is plugged in, the application begins copying all files from the drive to the working directory, in a directory with the following name:
[{ID}_{DAY}-{MONTH}-{YEAR}_{HOUR}-{MINUTE}-{SECOND}-{MILLISECOND}]{DRIVE_NAME}
Where:
- {ID} - An arbitrary ID that is used to minimize the chances of 2 drives being duplicated in the same directory.
- {DAY} - The current day
- {MONTH} - The current month
- {YEAR} - The current year
- {HOUR} - The current hour
- {MINUTE} - The current minute
- {SECOND} - The current second
- {MILLISECOND} - The current millisecond
- {DRIVE_NAME} - The drive name, or
USB Driveif the drive doesn't have a name
To see what arguments the application accepts, launch it with the -h or --help flag (e.g. usbd.exe -h), or read below.
Note that It might take a few seconds for the application to detect the USB Drive.
By default, USB Duplicator copies files from all USB drives when they are plugged in. However, you can specify which drives you wish to copy from.
A drive is considered marked if it contains a file called usbd in the root (e.g. if the drive letter is F:\, then the drive will be considered marked if the file F:\usbd exists).
The marking file doesn't need to have any content, it just needs to exist.
You can switch to the whitelisting mode by launching the application with the -w or --whitelist flag. In this mode, only marked drives will be duplicated. Unmarked drives will be ignored.
This is useful when you have specific drives that you want to back up.
You can switch to the blacklisting mode by launching the appliation with the b or --blacklist flag. In this mode, only unmarked drives will be duplicated. Marked drives will be ignored.
This is useful when you have specific drives that you don't want to back up.
The default working directory is the directory where the application is launched from.
To change it, simply launch the application with the desired working directory as an argument:
usbd.exe "D:/path/goes/here"
usbd.exe -b "D:/path/goes/here"
usbd.exe "D:/path/goes/here" --whitelist
If the path contains spaces, it must be wrapped in quotes.
If the path contains spaces and it isn't wrapped in quotes, only the first space-less string will be considered as the path (e.g.
usbd.exe path/with spaces/goes/herewill launch the application with the current directory set to "path/with").If multiple whitelist/blacklist flags are passed, the last one will be used (e.g.
usbd.exe -w -b -w "path/goes/here" -bwill launch the application with blacklist mode enabled and with the current directory set to "path/goes/here").
By default, USB Duplicator logs all information in a console. However, if you don't want the application to open a console, and instead to work silently in the background, you can:
- use the silent version, provided in each release
- compile the code with the "SILENT" conditional compilation symbol
You can compile the code using any tools you want. However, below you'll find an easy way to do it. For this tutorial, Visual Studio 2019 is used, but other versions should work just fine. You can compile to any platform (x86/x64).
Select the Release configuration, and the Console Application output type (Project->Properties->Application).
You can also choose the Windows Application output type, if you want the application to have a separate console window all the time.
Select the Release (Silent) configuration, and the Windows Application output type (Project->Properties->Application).
