To Sleep, Perchance To Dream (NOT)

Have you ever being in the middle of a presentation and the screen suddenly drops into screen saver mode? Have you ever needed to run an application overnight and come back in the morning to find your computer in sleep mode?

It's happened to all of us or, if it hasn't, then it's only a matter of time before it does. So I had a hunt around for something that would prevent that short of making the machines not sleep or hibernate at all, which would be very power wasteful…

Found this for Windows…

http://darkfame.net/projects/windows

It runs in the system tray, has timer settings if needed and can allow the display to sleep (or not). By timer settings, I mean that you can set the no-sleep period. For example, if you're running a 30 minute presentation, then you could set the no-sleep time to one hour, which gives you a bit of run-over time and automatically enable sleeping again if you forget to turn it back on.

…and this for Mac OS X…

http://lightheadsw.com/caffeine/

It runs in the menu bar and has timer settings if needed.

All are free, need no installation, are easy to use (click to enable/disable) and can be set to run at startup.

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Generating Secure Passwords

Given that we often have a need to generate secure passwords for the likes of web applications, blogs, social sites, etc. I've been using a wee utility called PWGen for Windows.

PWGen is a password generator capable of creating large amounts of cryptographically-secure passwords or passphrases (from word lists).

It's small, doesn't write to the registry or hard disk and you can choose to use either the number of characters and a character set or use a number of words passphrase.

For Mac OS X, you could use the similarly small and unintrusive RPG or Doorman utilities. Both are free and available from the App Store.

Alternatively, there are some useful online password generators...

• PC Tools Secure Password Generator
• Strong Password Generator
• EverPassword Password Generator
• Free Password Generator
• Secure Password Generator
• Ablazesoft Free Online Password Generator
• Techzoom Password Generator
• Password Crackers Free Password Generator
• PassPlex

Also, once you've got your secure password, it's worth checking it with Microsoft's Password Checker.

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Malware and Virus Removal Tools

If you're unfortunate enough to get your PC infected with some malware or virus, then there are some useful stand-alone malware removal tools available from reputable software publishers...

• AVG Free Malware Removal Tools
• AVG Rescue CD
• Avira Antivir Rescue System
• BitDefender Free Tools
• Kaspersky Rescue Disk and Virus Removal Tool
• Microsoft Safety Scanner
• Microsoft Windows Defender Offline
• Microsoft Malicious Software Removal Tool
• Norton Power Eraser
• VIPRE Rescue
• FreeFixer

NB: Only download a tool when required as they are updated regularly. Also note that some of the tools listed here require to be burned to and started from CD.

There's also a useful, downloadable guide available...

Operation Cleanup: Complete Malware Removal Guide

NB: The author of the above guide, Brian Meyer, keeps it updated on his Select Real Security site where you'll also find some other very useful security-related resources and information.

There's also a good tutorial on cleaning an infected system on Gizmo's Freeware...

How to Clean an Infected Computer

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Mounting .ISO Images

​If you've ever downloaded a disk image file in .ISO format, then you'll know that you need a means of mounting these on the system as the OS itself won't do it automatically.

Windows

For Windows, I use OSFMount, which supports .ISO and a great many other image file formats such as .IMG, .BIN, .NRG, .SDI, .VMDK and more.

OSFMount also supports formatting, extending, imaging and the creation of RAM disks.

Alternative solutions are Virtual Clonedrive and Daemon Tools Lite, although the latter is only free for non-commercial use.

Mac OS X

For Mac OS X, you can mount .ISO images using Apple's Disk Utility application, which can be found in the /Applications/Utilities folder, as follow...

1. Open Disk Utility
2. Select the Open Disk Image... option from the File menu
3. Locate your disk image and click on the Open button to mount it

You can also mount virtually any kind of disk image from the Terminal by using the hdiutil command. e.g.:

hdiutil mount sample.iso

where sample.iso is the path to the image you want to mount.

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How to Find User Guides and Manuals

If you're looking to download the user guide or manual for an electronic product and it's not available on the manufacturer website, then you might find it on Amazon.com. The site hosts PDF manuals of thousands of electronic products including those of items that have either been discontinued or are no longer available for sale.

These resources are primarily hosted on two Amazon servers – images-amazon.com and ssl-images-amazon.com. Here’s how you can find the one you're looking for...

Go to Google and type the following query, replacing the word ITEM with actual name or make and model of the thing you're looking for and replacing LANGUAGE with, well you know what I mean.

ITEM LANGUAGE filetype:pdf site:ssl-images-amazon.com OR site:images-amazon.com

These Amazon sites also host sample chapters of books in PDF format so you may want to add some extra terms to the search query – like Operation Guide, User Guide, Owner’s Manual, Installation Guide, etc. for better results.

If the above doesn't produce any useful results, then modify the query to search the whole of Google by removing the server names. If that doesn't work, then try removing the filetype dependency.

There are also some user guide sites worth checking out as well...

• SafeManuals.com
• PDFuu.com
• manuals online
• retrevo
• UserManualsGuide.com
• ManualsLib
• eSpares - User Manuals
• The Manuals

The older manuals are mostly PDF images scanned from the printed document but since Google supports OCR, these scanned PDFs are also searchable.

Tip: If the PDF is large, then you can just put the file URL in Google Docs Viewer and read the full manual online instead of downloading it.

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Joining Video File Segments Without Re-encoding

Have you ever downloaded a video in multiple segments or converted a double sided or dual-disc DVD, which leaves you with two video files? Ever wondered if you could simply join these files together for seamless playback?

If you're still reading, then I assume you do. Well, same here and I wanted a tool to do the job that didn't require a degree in video production techniques and of course, if it was free, then all the better.

After much searching and experimentation, I found a few free utilities available to do just that. There are also loads that either don't work as they say they will, are just too complicated or insist on re-encoding the video, which almost always results in some loss in quality.

There are a few provisos to attaining that no re-encoding goal in that all segments to be joined must be encoded in the same way, have the same bit-rate, same resolution, etc.

So, here are my recommendations for joining/concatenating the more common video file types…

Hint: before joining files, make sure they're all in the same folder and that each file is numbered in joining sequence. e.g. video1.avi, video2.avi, etc.

ASF, WMV

For ASF and WMV files, there's AsfBinWin. a Windows utility for cutting out fragments, joining, editing and repairing ASF files. It can operate on any ASF, WMA and WMV files and it does it all without re-encoding.

Joining ASF or WMV files with it is easy…

1. Use the Select files from: … button on the right to locate the folder containing the desired file segments.


2. Highlight the desired files in the order you want to join them in and click on the ←←← button to move the files to the List of input files: pane on the left. The program will check all is okay and number the files in colour-coded order.


3. Under Destination: select a destination and file name for the joined file. The program will default to out.asf.
   


4. Click on the Cut / Copy / Join button.

AVI

For AVI files, there's VirtualDub, a video capture/processing utility for Windows. Joining video segments isn't really what this program was designed for but it does it so simply and, with the right settings, without re-encoding…

1. Select the Direct stream copy option from the Video menu.


2. Select the Direct stream copy option from the Audio menu.


3. Use the Open video file… option from the File menu to open the first file in the sequence.


4. Use the Append AVI segment… option from the File menu to add additional segments in order. If the program warns you that the audio bit-rates don't match, then use the Full processing mode option from the Audio menu. It'll take a wee bit longer to process but not that much.


5. Use the Save as AVI… option from the File menu to choose a file name and destination and to begin the joining process.

If you're running Mac OS X, then try AVITools. The interface isn't exactly intuitive and the unregistered version is a bit annoying to use but it will join identically encoded files. If it works for you, then paying the really cheap registration would be worth it.

FLV

For joining FLV (Flash Video) you can try FLV Joiner or SUPER but to achieve lossless joining, the video file formats must be identical.

MKV

Get yourself MKVToolnix, a set of tools to create, alter and inspect Matroska files under Linux, Unix and Windows and it can also handle MP4 files but the output will be saved as MKV.

1. Open the first file in the sequence.


2. Click on the Append button to add the next file. Repeat until all segments have been added.


3. Click on the Mux Now button.


4. Save the file.

Regardless of the site's statement that the Mac OS X version of MKVToolnix requires MacPorts, there's a native version for Mac OS X 10.5 and above available from http://jonthn.free.fr/MKVtoolnix/

Another option is MKVTools for Mac OS X. Again, like AVITools, the interface is a bit confusing but it'll do the job. It's worth noting that, at the time of writing, the developer was working on a new version and only the old one is available for download.

MP4, M4V

MP4Box for Windows should be able to do the trick for MP4 and M4V files here but it's a command-line tool (life's too short) but, even with attempts using both popular GUI front-ends My MP4BoxGUI and Yamb, I just couldn't get it to work with any of the video files I had.

However, I did have some success with MP4Tools, a sister application to AVITools and MKVTools for Mac OS X.

MOV

If you have a QuickTime Pro registration, then you can easily join MOV files using QuickTime Player…

1. Open the first file in the sequence.


2. Move the insertion point to the end of the movie.


3. Open the next file in the sequence.


4. Select the entire movie using the Select All option from the Edit menu.


5. Select the Copy option from the Edit menu.


6. Activate the original/first file movie window and select the Paste option from the Edit menu.


7. If you have more segments to add, then repeat steps 3 to 6 until done.


8. Select the Save As… option from the File menu and save the new, concatenated movie.

You can use this method for any format that Quicktime supports but it'll always want to save as a .mov file.

It should be noted that SUPER claims to be able to join identically encoded files of any input format it supports so it'd be worth trying on any of the above formats.

PS Just to be clear, I've tried AoA Video Joiner, Yamb/MP4Box, Avidemux, All Free Video Joiner and a few others but all of them failed in the task for various reasons.

PPS Some very useful sources of information are the guides and tutorials from VideoHelp.com, AfterDawn, and Doom9.net.

I'd always be happy to hear of any other similar tools or better methods of joining video files.

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Recovering Windows Software Keys

If you ever need to recover a Windows-related CD installation key, these wee portable (no install needed) and free utilities could be useful…

SoftKey Revealer

• Recover Windows 95/98/ME/2000/XP/2003/Vista/7 32-bit(x86) product keys.
• Recover Microsoft Office XP/2003/2007 product keys.
• Recover over 700 software product keys.

If you want to recover a key for a game, then use GameKey Revealer.

Nirsoft ProduKey

ProduKey is a small utility that displays the ProductID and the CD-Key of Microsoft Office (Microsoft Office 2003, Microsoft Office 2007), Windows (Including Windows 7 and Windows Vista), Exchange Server, and SQL Server installed on your computer.

You can view this information for your current running operating system, or for another operating system/computer - by using command-line options.

The Nirsoft site has a wealth of free and extremely useful Windows-related utilities and is well worth exploring if you like that kind of thing.

Magical Jelly Bean Keyfinder

The Magical Jelly Bean Keyfinder is a freeware utility that retrieves your Product Key (CD key) used to install windows from your registry. It also has a community-updated configuration file that retrieves product keys for many other applications. Another feature is the ability to retrieve product keys from unbootable Windows installations.

If the free utilities above can't recover the key you need, then you may want to look at the shareware Recover Keys utility, which can check for over 1,100 product keys.

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