File system and registry virtualization in Windows 7

[Ander K]

I want to know about the File system and registry virtualization in Windows 7. Let me tell you the fact, that I have given an assignment about this topic. I am not having enough knowledge about this topic. So thought to post on this forum. I hope that you people are very helpful. Along with that I also hope that somebody hanging out there will provide some detailed information about it sooner. Since, I am new to this forum, please ignore my mistakes, if any.

[Savannah87]

The file system and registry virtualization makes it possible to run a lot of old applications on Windows 7, without having to use virtual machines must. Specifically it is about programs that are not able (or it to not work with Windows XP) were without running the administrator rights, because they store data and user settings in system file system directories and registry keys. In XP you had when using software was programmed so the administrator log on as, whatever the rule was then, however, significant security risk represented, the Windows Vista originally written were run on Windows 7 is still current.

[Laramie]

he file system and registry virtualization recognize when requests are denied because the application does not have enough privileges and bends them so that they end up in a user-local directory or registry key - invisible to the application from their perspective, the virtualized directory or looks of the virtualized registry key system as its counterpart. The virtualization status for a process is stored along with other information such as user context, group memberships and privileges in the token. Windows virtualizes all the processes it as a "legacy" classifies ("RAL"). These must meet the following conditions:

• 32-bit process,
• does not run with administrator privileges
• has no application manifest.

[CRiley]

Internet Explorer ActiveX host for applications and scripts is because, where we assume that they are not compatible to run with normal user rights are potentially, stuft Windows iexplore.exe well as "legacy" one. In Task Manager, you can see the virtualization status for each process, after you have displayed the appropriate column on the View menu. From the context menu, you can also change the virtualization status of each process, after one - have Windows alert confirmed from potential data loss - very legitimate.

[Alondra]

From the context menu, you can also change the virtualization status of each process, after one - have Windows alert confirmed from potential data loss - very legitimate.

This means that the effects of virtualization easy test: Start a command prompt and change the status of the virtualization process cmd.exe, and then in system directories or files or directories to create registry key using the command-line tools reg.exe edit. Depending on the status of Windows will refuse to action or conduct in the virtualized storage. An application manifest is an XML file that describe the shared and private and Identifiers side-by-side assemblies in application that should bind to at run time. These should be the same assembly versions that were used to test the application. Application manifests may therefore describe metadata for files that are private to the application.

[KennedII]

I would like to discuss about the File system virtualization. The file system virtualization implemented on the Windows kernel-mode driver luafv.sys . Virtualizes the system directories %ProgramFiles% , %ProgramData% and %SystemRoot% . The virtualized root directory of a user is located below each %LOCALAPPDATA%\VirtualStore. For example: Will a legacy application, a file called C:\Windows\Application.ini create, they end up instead in %LOCALAPPDATA%\VirtualStore\Windows\Application.ini . Executable files are excluded from virtualization - a legacy application can not therefore sit as "private" versions of executable files or scripts in the virtualized directory. The Windows Explorer has a feature that helps find the virtualized files: Open displays a system directory, for which there is a virtualized version of the Explorer, an extra button that you can open the virtualized directory.

[Galbraith]

Windows virtualizes most of the branch registry HKLM \ Software, but excluding HKLM\Software\Microsoft\Windows , HKLM\Software\Microsoft\Windows NT and HKLM\Software\Classes . The virtualized machine registry entries are located under HKU\‹User-SID›_Classes what a user logs in each case under HKCU\Software\Classes\VirtualStore is involved. Using the flags REG_ KEY_DONT_VIRTUALIZE key can be set in each that he must not be virtualized, is also REG_KEY_RECURSE_FLAG set, newly created subkey accept this setting. Experiments with legacy applications, registry data in key with the flag REG_ KEY_DONT_VIRTUALIZE create go by default into the void, that is, Windows is not granted the application requested by rights, but only those that calling user to the real key holds the. Only when a further flag REG_KEY_ DONT_SILENT_FAIL is set, finds the application that the request was not met, they respond to it with an error message that can possibly.