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Second Copy 9 can copy open files on a local hard disk that is formatted with NTFS on 32-bit and 64-bit Windows. It cannot compress open files and it does not copy open files when using FTP.

Second Copy 9 works with Windows 11. It also works with Windows 10/8.1/8/7/2012/2008/Vista/XP (32-bit as well as 64-bit Windows.) You can download it from our download page.

Step 1:
Before you begin to upgrade to Second Copy 9, make a backup copy of your Second Copy 8 profiles.

Second Copy 8 stores its profiles and settings information in a hidden file called "profiles.dat" under "\Documents and Settings\Local Settings\Application Data\ Centered Systems\Second Copy" folder. (where, is the currently logged in username. In Vista/7 and above, profiles.dat file is stored under "\Users\AppData\Local\ Centered Systems\Second Copy" folder.

If you do not see the profiles.dat file in Windows Explorer:
1. Open Windows Explorer and go to the directory where Second Copy is installed. By default it is C:\Program Files\Second Copy.
2. On the Explorer's View menu, click Options.
3. Click the View tab, and then click Show All Files.
4. Uncheck the Hide MS-DOS File Extension.

Step 2:
Once you have made a backup copy of the Second Copy 8 profiles, uninstall Second Copy 8 from the Start menu.

Step 3:
1. Download the latest version of Second Copy 9 from the Download link.
2. Then run the downloaded installation file (sc9.exe) to start the installation of Second Copy 9.
The new installation will automatically recognize the existing Second Copy 8 profiles. If not, you can import the Second Copy 8 profiles into Second Copy 8 by selecting "Import" from the "File" menu. You can use the backup copy of the Second Copy 8 profiles for the import.

Second Copy uses PKZip 2.04g compatible compression format. Files compressed with Second Copy can be decompressed with PKZip, WinZip or other compatible programs. Second Copy also comes with a built-in unzipper for files compressed with Second Copy.

Second Copy offers 256-bit AES (Advanced Encryption Standard) encryption. It is a symmetric block cipher that uses a 256-bit key to encrypt and decrypt data. It's considered the most secure encryption algorithm available today.

Second Copy is designed to maintain a backup of the source files in the destination folder. Second Copy does this by comparing the source and destination files and folders every time it runs a profile. It checks the date and time stamps of the files in the two locations and decides which files need to be copied.

The first time Second Copy runs a profile, it copies all specified files from the source to the destination. After that it copies new or changed files. It also copies any files that are missing from the destination. So if you remove some files from the destination they will be recopied when Second Copy runs next time.

This is different than the conventional backup programs that do "full backup" and "incremental backup". The conventional "full backup" gives you a full set of all the files and the conventional "incremental backup" give you a set of only changed files.

Second Copy can handle conventional incremental backups by use of the archive bit.

Second Copy 9 does not run as a service. We have discontinued that feature from Second Copy 9.

The first time a profile is run, Second Copy copies all the selected files and folders from the source to the destination. The next time the profile is run, if the destination already has the files that have the same date and time stamp as that of the source, Second Copy does not copy those files again. It only copies new and changed files.

There are several options in Second Copy to change this behavior. For example, you can tell Second Copy to use the file's archive bit to determine which files should be copied instead of using the file's time stamp.

You can order Second Copy over the Internet with a credit card via our ordering agents or send us a check or purchase order. See the Pricing page for details. When we receive your order, we will send you a serial number by e-mail. You can enter this serial number in the software you have already downloaded and installed on your system, and it will become a licensed version in your name.

To enter the serial number into the evaluation version of Second Copy, select "Enter License Information" from the Help menu.

A single user license of Second Copy costs US$29.95. For details on other pricing, see the Pricing page.

The current released version of Second Copy is release 9 build 9.5.0.1016. Licensing this entitles you to all minor revisions (v.9.1, 9.2, etc.) at no additional cost. However, there will be an upgrade charge for major revisions (v10.0, etc.) in the future.

Registered users of Second Copy 8 will receive 50% discount off of regular price. Please go to the following link to validate your Second Copy 8 registration and get the upgrade pricing: Click here to Validate registration

Note: You can look up your Second Copy 8 registration by selecting About on the Help menu of the main Second Copy 8 window.

Second Copy application should be installed and run on each system. It should not be run from a shared network drive. However, you can run the Second Copy 9 installation program (sc9.exe) on various client systems from a shared network drive.

To simplify the installation process, you can prepare a profiles.dat file with proper registration information on one system and have it automatically copied to the client systems during installation.

1. Install Second Copy 9 on one system using the sc9.exe installation program.
2. Enter the registration code for your multi-user license
3. Create any default profiles you want every user to have
4. Copy the profiles.dat file (a hidden file in Second Copy folder) from this system to a network directory along with the sc9.exe program

Now you can tell other users to install Second Copy 9 from the network drive by running sc9.exe. This will run the installation and copy the registration key with any predefined profiles to the users' system. You can even automate this process by including this command in your user's login script (make sure that it only gets run once).


Note: Second Copy stores its profiles and settings information in a hidden file called "profiles.dat" under "\Users\Username\AppData\Local\Centered Systems\Second Copy" folder. (where, "Username" is the currently logged in username.)

In Windows XP, the profiles.dat file is stored under "\Documents and Settings\Username\Local Settings\Application Data\Centered Systems\Second Copy" folder. (where, "Username" is the currently logged in username.)

Another way to find out where the profiles.dat file is located, please select Help > About on the main Second Copy window. Then press Ctrl + I. This will open another window showing the location of the profiles.dat file.


Silent installation If you don't want your users to answer all the installation script questions, you can ask them to run "sc9.exe /SP /VERYSILENT /SUPPRESSMSGBOXES" to do a silent install. This will install Second Copy on their systems with default values.

If you have lost the Second Copy license information, you can retrieve it by e-mail. You must enter the original e-mail used when the product was registered. For your protection we will send license information only to the e-mail address in our database.

If your e-mail has changed since the original purchase then please write to support@secondcopy.com

Click here to retrieve lost license

Most of the time the files that you need to backup are your data files. If you lose the hard disk, you can install the program files and other software from the original CDs or diskettes but your data files are the most valuable and they need to be restored from your own backups or "Second Copies".

If you organize the data files properly, it will make the task of backing them up much easier. So here are a few tips on how to organize your data files.

Ideally, all your data files should be kept under a single folder (such as "My Documents" or ""Data") organized into sub folders by subject or type of application. This makes it easy to back up all the data with a single Second Copy profile.

By subject:
C:\My Documents
C:\My Documents\Projects
C:\My Documents\Projects\Drawings
C:\My Documents\Projects\Reports
C:\My Documents\Financial
C:\My Documents\Memos
C:\My Documents\Personal

By application:
C:\My Documents\Excel
C:\My Documents\Word
C:\My Documents\Access

Most applications allow you to change the default data folder. Once you decide on the file organization, change your application settings to automatically save files in the appropriate folder so that you don't have to change the folders every time you save a document.

It is not a good idea to mix your program files and data files in the same folder. So avoid saving your documents into folders such as "C:\Program Files\MSOffice".

To quickly create a new profile, open the source folder in Windows Explorer then drag and drop the desired files on to the Second Copy's main window. The profile wizard will pop-up with default settings. Check and adjust the settings and give the profile a new name.

Second Copy has a built in Zip file viewer. You can use this to view and extract files inside a compressed file. To use, simply right click on a compressed profile and select "Destination files..."

If you want to exclude certain sub folders from a profile. In the following example substitute SubFolder1 with the name of the folder you want to exclude.

1. Right click on the profile and select Properties.
2. Select Custom setup.
3. Click Next until you see the "Which files?" page.
4. In the edit box under "Exclude file specifications" enter \SubFolder1\
5. Click the Add button next to the edit box, then click Next, Next and Finish.

At times you may need to restore all of the files from the destination back to the source. Second Copy makes this easy for you. Mark the profile you want to restore and then select Restore from the Tools menu. This would copy the files from the destination folder back to the source folder.
If you want to restore the files somewhere else, then you can use Windows Explorer that you are already familiar with.

1. Select Right click on the profile and select "Source files...". This will open an Explorer Window with your source folder.
2. Right click on the profile again and select "Destination files...". This will open another Explorer Window with your destination folder.
3. Now you can simply select files from the destination folder that you want to restore and drag-and-drop them on the source folder.
4. If the files are compressed, instead of drag-and-drop use the Extract files feature.

When you set a profile to compress files, Second Copy creates a single Zip file (or optionally individual zip files) in the destination folder that contains all the compressed source files. It is best to keep these Zip files smaller than 10MB in size.

Efficiency - If you have a profile that is compressing lots of files into a single Zip file, the Zip file will get quite big. This makes the future compression and decompression activities on this Zip file take longer. The length of time needed to update files inside a large Zip file grows exponentially with the size of the Zip file.

Safety - If one of the files inside the Zip file gets corrupted during update, there is a danger of the entire Zip file becoming unusable. Keeping the Zip files smaller, you will reduce the risk of losing other files.

Space - When updating files in the Zip, Second Copy makes a copy of the original Zip file into a temporary file and makes the updates to this file. On successful compression, it deletes the original Zip file and renames the temporary file to the Zip file. So you need enough space on the destination drive to hold the original Zip file and the temporary file. If you do not have enough free space on the destination drive, you can uncheck the option to "Use Destination folder for temporary Zip files", assuming that you have enough free space in your TEMP directory.

(If there is not enough space on the destination drive, you will get a XcdErrorWrite error in the Second Copy log. If you see a file named _Zaxxxxx in the destination folder, it a leftover temporary file that should have been deleted. You can delete it.)

If you don't have enough space on the destination drive (such as an IOmega Zip disk) you can configure Second Copy to use the Windows Temp directory for the temporary Zip file instead of the destination drive. This may slow down the process since the temporary file has to be copied to and from the drive. To set this option:

1. Right click the profile and select Properties
2. Go to the How tab
3. Click the Advanced Properties button
4. Click the Compress tab
5. Select "Do not use destination folder for temporary Zip files"

The directory macro expansion feature can be used to create different Zip files for different dates. For instance, if you create a compressed profile named: "Daily Reports - $DATE$" (without the quotes), Second Copy will create different Zip files in the destination folder for each day it runs. For example, the following files would be created if the profile was run on September 15, 16, and 17, 2024.

Daily Report - 20240915.Zip
Daily Report - 20240916.Zip
Daily Report - 20240917.Zip

The same technique can be used to create other Zip files using appropriate directory macro expansions like $month$, $DayOfWeek$ etc.

Right mouse click on the profile you want to create a desktop shortcut for and select "Create Desktop Shortcut."

To see which file is being copied, simply hold the mouse over the progress bar. You will see the name of the file being copied as a pop-up hint. It will also appear in the status bar.

Second Copy treats the root directory of a drive in a special way. You can copy files from the root directory of a drive to another drive as long as you don't select a folder also. If you do, the files will not be copied. There are two ways of working around this.

1. Use UNC name to address the drive instead of the drive letter and a colon. e.g. Use \\computername\sharename instead of C:\
2. Create two separate profiles, one for the root directory files only and another for the folders.

There are two types of include/exclude specifications: Folder specifications and file specifications.

Folder specifications

These must start with a slash and must end with a slash. No drive letter, colon or special characters such as * or ? are allowed. You don't have to specify all folder levels only the ones that are unique. For instance, if the full path of a folder is C:\Data\Personal\Letters\Saved\ you can specify \Data\Personal\, \Letters\, \Letters\Saved\, \Saved\ or any other parts of the path between two slashes.

File specifications

These do not have any slashes and they can contain wildcards such as * or ?. (Example: *.doc)

Selection process

1. Second Copy first selects only those folders which match with the include folder specification.
2. Then within those folders it only considers files that match the file specification.
3. Then it uses exclude specifications to eliminate any files are folders from consideration.
4. Now the remaining files are candidates for the copy process.

Copy Process

Second Copy uses the above method to select files from the source and the destination and then compares their date/time stamps to decide which files need to be copied.

Second Copy can copy files using FTP. This is helpful if you want to copy files to a remote computer that offers File Transfer Protocol (FTP) service. From the File menu select New FTP Profile to define the profile to copy files to/from the FTP site. Second Copy 9 does not support secure FTP copying.

There is an easy way to back up the profiles. Select "Create Second Copy Setup Folder..." from the Tools menu.

Second Copy stores its profiles and settings information in a hidden file called "profiles.dat" under "\Users\Username\AppData\Local\Centered Systems\Second Copy" folder. (where, "Username" is the currently logged in username.)

In Windows XP, the profiles.dat file is stored under "\Documents and Settings\Username\Local Settings\Application Data\Centered Systems\Second Copy" folder. (where, "Username" is the currently logged in username.).

You can also import the profiles into Second Copy by selecting "Import" from the "File" menu.

Originally posted on December 26, 2002.

Your hard disk will crash. Count on it. It happens to everyone eventually. And when it does you will be glad you have a backup copy of all your data. Today Lucas McGregor, CTO of Xdrive, will teach you how to back up your hard drive on "Call for Help."

You do have an up-to-date backup, don't you? You don't? Never fear. Here are the simple rules of data recovery for people who hate to back up.

Back up and take it with you

I strongly recommend using some form of removable media for your backup. You could purchase a second hard drive or create a special partition on your current hard drive. Keep in mind that backing up to a separate partition on the same hard drive isn't going to be recoverable if your hard drive crashes. If you can't take it with you, it's not a backup. I know a famous author who lost an entire novel because her backups were stored next to the computer when her house burned to the ground.

You can back up to floppy disks if you have no other choice, but floppies aren't reliable for long-term archival storage. And filling dozens of floppies is so time-consuming, most people will put off backing up until it's too late.

Many users want to emulate businesses and back up to tape drives. Tapes are cheap, and their huge capacities make it easy to back up an entire hard drive. But I don't like tape backups because you're never sure if the data is really there.

I prefer to have long-term archival storage of my data such as CD-R or DVD-R. If you need to store more, you'll need more than one disc. Since each CD stores 650-700MB, I can back up all my data monthly for very little cost. CD storage is compact, compatible with nearly every PC on the market, and likely to last for several decades at least. Most backup programs will back up to CD-R. I recommend Dantz's Retrospect or Retrospect Express.

DVDs hold 4.7GB, considerably more, so you may want to consider buying a DVD burner for your backups. Recordable CDs and DVDs are as close as you can get to backup nirvana.

CD-RWs (CD rewritables) present another alternative to storing your backups. CD-RWs cost a little bit more per media than CD-Rs but are well worth it. CD-RWs allow you the option of dragging and dropping directly to the disc just like you would when copying files to a floppy disc.

Older removable storage mediums such as Iomega's Zip or Imation's SuperDisk are suitable if you already have the required drive. These disks hold 100-250MB or 120-240MB respectively -- plenty of space to back up all your irreplaceable data. Best of all, your data is stored on the disk normally, so it's easy to verify that the copy actually took. Your money is better spent on a burner if you don't already own a Zip or SuperDisk drive.

I use a simple shareware program called Second Copy to automatically back up my data every few hours to a Zip disk in my machine. But this is an old practice I've engaged in for ages. I have three disks I rotate daily, taking the most recent to work with me. This way I always have three copies of my data, one of which is offsite in case of a major disaster.

What Should I Back Up and How Often Should I Do It?

Businesses make backing up simple. They buy big tape drives and back up absolutely everything all the time. When the inevitable hard drive collapse happens, the system administrator can restore the work in a matter of minutes.

For businesses, where every minute of downtime means dollars lost, that might make sense. But most individuals aren't willing to pay the money or take the time to back up everything all the time.

What should you back up?

For the rest of us, the essential rule of backing up is, "Make a copy of anything you can't otherwise replace." That means you make copies of all your personal data, such as documents, image and media files, email, financial data, saved games, and anything else that's important to you.

Don't make copies of Windows or your applications (unless you no longer have the master disks). If you copy the contents of a program folder, it usually doesn't operate the same as if it were installed. If you lose your hard drive, you'll have to take a few hours to rebuild it from the original program disks. That's not the end of the world. The main key is to have a recent copy of your precious data, so that you can restore it in the event that something does go wrong.

You'll want to back up some things every time you make changes. For example: I make a copy of my Quicken data every time I balance the checkbook. Other things can be backed up weekly or monthly. I'd strongly recommend backing up all your data at least weekly and saving a copy of that backup offsite. If you can't get to it weekly, then religiously try to do it at least once a month.

Keep files in one folder

You should have one folder where you store all your documents. Mac users will want to create one called Documents and will want to start getting in the habit of storing all their work inside this folder. Windows automatically makes a My Documents folder, and most Microsoft programs will automatically store their data inside this folder unless directed not to.

Not all programs automatically save documents to the My Documents folder. One critical exception is a program such as Intuit's Quicken. It stores data in its own program directory, unless you save it elsewhere. So if you're using Quicken, right now, before you forget, open Quicken and save a copy of your data to the My Documents folder. Once you do that, Quicken will continue to keep it there.

If you're religious about directing programs to store documents in the My Documents folder, backing up will be much simpler. Nearly everything you want to back up will be inside it. The key concept you should remember is that it's easier to back up one folder instead of having to hunt through your entire hard drive for files you can't live without when it comes time to back them up.

There are a few other things you might also want to back up.

Where Do I Find My Data Files?

Here's a list of common data files and where to find them:

Saved games: Inside the game program's directory you should find a folder called "Saved Games" or something similar. There's no clear method of describing where a saved game is stored, since each game manufacturer uses a different system. If you are unclear, consult the game's documentation.

Email: Locations vary. Eudora stores its email and address book in .mbx files in the main Eudora folder. Outlook Express lets you specify the location of its .dbx mail file, so it could be anywhere. Netscape Messenger defaults to "C:\Program Files\Netscape\Users\your name\Mail." Outlook stores everything in a .pst file.

The easiest way to locate a lost file on your system is to use the Find Files application. From the desktop, press F3 to launch the program. To find all the Outlook Express email boxes on your system just search for *.dbx. The asterisk is a wild card that tells the search tool to find all the files ending with .dbx on your system.

Templates, fax cover sheets, and documents: You may have put a lot of time into these. It'd be a shame to lose them. If you don't already, get in the habit of keeping these in the same folder. When you save a document, make sure you specifically save the file in the designated backup folder.

Internet bookmarks and favorites: Netscape defaults to "C:\Program Files\Netscape\Users\your name\bookmark.htm." Internet Explorer stores them as individual files in the C:\Windows\Favorites or C:\Documents and Settings\User Name\Favorites directory.

Preferences and settings: They're scattered all over your hard drive, usually in files with the .ini extension. You probably don't need to back up Windows .ini files, but you might want preferences from other programs. And don't forget to jot down your dialup networking and TCP/IP settings while you're at it.

You may have other important data hidden away on your hard disk. It's not a bad idea to take a walk through your drive to see what else is there. You can simplify matters by doing a search of your disk by file creation dates. Look for new files, since new files were most likely created by you.

The moral of our story is all computers fail eventually. And they always seem to do it when you need them the most. Protect yourself by backing up. You'll be glad you did. I promise.

You can change the log file format from .rtf to .html so that non-English (Unicode characters) names will show properly. Please add html option in the profiles.dat file. The option to add would be "LogFileType=html" in the [Options] section of the profiles.dat file. For more information, please refer to the Help file under "Hidden Options" section. Use Notepad to edit the profiles.dat file.

When Second Copy is installed and started successfully, you will see the Second Copy icon in the system tray (not the task bar). Left mouse click on this icon to open the main Second Copy window. (If you do not see the Second Copy icon in the system tray next to the clock then make sure that it is not hidden by Windows.)

To check if Windows is hiding the icons, click on the UP arrow as shown in the picture below and see if Second Copy icon is listed there.



The only way to open the main Second Copy window is by clicking on the Second Copy icon in the system tray. This is by design. If Second Copy is already running in the background, then clicking on Second Copy from the Windows Start menu will not start another instance because it is already running.

CD disks are subject to an error called buffer underrun. It happens when the computer is not supplying data quickly enough to the CD writer for it to record the data properly. The most common causes of buffer underrun are out-of-date drivers or a system that does not meet the minimum requirements for CD burning.


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Contact Us

Please send your questions via email to "support@secondCopy.com" Thank you!