1. Backup all important data on Windows 7.
2. Install Windows XP into separate partition.
3. Boot into Windows XP. (You won't be able to boot into Windows 7 at this point).
4. Download and install EasyBCD. EasyBCD requires Microsoft .NET Framework Version 2.0.
5. Run EasyBCD:
Add/Remove entries > Add Windows XP
Change Settings > Select correct drive for Windows XP
Manage Bootloader > Reinstall the Vista Bootloader > Write MBR

6. Restart computer.
7. Boot into Windows 7 (You won't be able to boot into Windows XP at this point).
8. Copy boot.ini and ntldr from Windows 7 system drive to Windows XP system drive (enable "Show System Files" in folder options first).
9. Restart computer.
You should be able to boot into both Windows XP and Windows 7.

CPC (Cartesian Perceptual Compression) algorithm is designed for compressing 1-bit raster images, such as black-and-white photographs and line art; often used for compressing monochrome design layouts, legal documents, and other types of scanned text files.

To View files in IE install ActiveX plugin from
http://www.cartesianinc.com/Products/CPCViewAX/

To convert CPC files into JPG use command line tool CPCTool-523-Win32-X86.zip
source.cpc -O destination.jpg
For more switched run CPCTool without any parameters.

If "New Text Document" context menu entry gets corrupted or missing restore it by running the following .reg file
Content of the file:

Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\.txt]
"Content Type"="text/plain"
@="txtfile"
"PerceivedType"="text"
[HKEY_CLASSES_ROOT\.txt\OpenWithList]
[HKEY_CLASSES_ROOT\.txt\PersistentHandler]
@="{5e941d80-bf96-11cd-b579-08002b30bfeb}"
[HKEY_CLASSES_ROOT\.txt\shell]
[HKEY_CLASSES_ROOT\.txt\shell\open]
[HKEY_CLASSES_ROOT\.txt\shell\open\command]
@="notepad.exe %1"
[HKEY_CLASSES_ROOT\.txt\ShellNew]
"NullFile"=""

Offline Files is a useful Windows feature which allows to make network files available offline.
On a local system offline files by default are stored in a hidden folder: C:\WINDOWS\CSC They are stored in a proprietary compressed format and can't be accessed directly. If for whatever reason you need to extract offline files from CSC folder (system crashed, user left the company, etc), follow instructions below:

1. Download and extract CSCCMD.EXE 1.1
2. Copy C:\Windows\CSC directory from the old computer to the same location on the new computer (make sure OS and Service Pack versions are the same).
3. On the new PC create a new directory C:\Restore
4. Execute:
   csccmd /enable
   csccmd /extract /target:C:\Restore /recurse

If csccmd /enable fails you may have offline files functionality disabled by group policy.

Windows XP