Offline servicing of image files

• US 7,523,089 B2
• Filed: 09/30/2005
• Issued: 04/21/2009
• Est. Priority Date: 09/30/2005
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Guruprakash, Bangalore
• Primary Examiner(s): LEWIS, CHERYL RENEA
• Application Number:
  US11/241,435
• Publication Number:
  US 20070078801A1
• Time in Patent Office: 1,299 Days
• Field of Search: 707/104.1, 707/1, 707/2, 707/6, 707/200, 719/328
• US Class Current: 1/1
• CPC Class Codes: G06F 16/583 using metadata automatically derived from the content
• CPC Class Codes: Y10S 707/99931 Database or file accessing
• CPC Class Codes: Y10S 707/99945 Object-oriented database structure processing

Abstract

A method for offline servicing of an image file by mapping the image to a directory using a file system mini-filter driver. The file system mini-filter driver maps the contents of the image to the directory and provides either read-only or read-write access to the contents of the image. The method further displays the contents of the image mapped to the directory for review by a user.

Claims

1. A method for servicing, by a computer, an image in an offline state, said image having a file-based image format, said method comprising:

mapping the contents of the image to a directory with a file system filter driver;

providing access to the contents of the image via a file access application; and

displaying the contents of the image mapped to the directory for review by a user utilizing the file access application, wherein the file system filter driver monitors and intercepts calls from the file access application to the file system of the directory where the image is mapped, said file system filter driver thereby providing access to the contents of the image in a hierarchal directory structure without modification of the file access application.

2. The method of claim 1 further comprising receiving edits to the mapped directory of the image via the file access application wherein the file system filter driver intercepts the call from the file access application and applies the edits to the image file.

3. The method of claim 2 wherein said receiving edits comprises receiving at least one of file additions to the mapped directory of the image, file modifications to the mapped directory of the image, and file deletions for the mapped directory of the image.

4. The method of claim 2 wherein said modifying comprises unmapping the contents of the image from the directory and applying said received edits to the unmapped image to create a modified file-based image format image.

5. The method of claim 4 further comprising storing the received edits embodied in the modified image without recreating the image.

6. The method of claim 5 wherein said storing the image comprises storing a Windows Imaging (WIM) image format image.

7. The method of claim 2 wherein said displaying the contents of the image further comprises displaying the received edits as part of the displayed image for review by the user.

8. The method of claim 2 wherein said providing access further comprises accessing the mapped image with a file system explorer tool.

9. The method of claim 1 wherein said providing access further comprises accessing the mapped image with a Win32 application programming interface (API).

10. The method of claim 1 further comprising at least one of opening a file within the contents of the displayed image and executing an application within the contents of the displayed image.

11. The method of claim 1 wherein said mapping the image comprises mapping the image with at least one of read-only access and read-write access.

12. The method of claim 11 wherein said mapping the image comprises at least one of (i) mapping at least one image to one or more directories when said at least one image is mapped with read-only access, (ii) mapping each of at least two images to one or more directories when said at least two images are mapped with read-only access, (iii) mapping one image to one directory when said one image is mapped with read-write access, and (iv) mapping at least two images to at least two respective directories when said at least two images are mapped with read-write access.

13. The method of claim 11 wherein said mapping further comprises mapping a first image to a first directory and mapping a second image to a second directory, said providing access further comprising comparing the first image with the second image, wherein differences between the first directory of the first mapped image and the second directory of the second image are displayed.

14. A computer-readable storage medium having computer-executable instructions for servicing an image in an offline state, said image having a file-based image format, said computer-readable storage medium comprising:

a kernel mode file system mini-filter driver;

an application programming interface (API) layer for communicating with the mini-filter driver;

a user mode tool for use by a user in communicating with the API layer according to a communication protocol providing a basis for interaction between the kernel mode file system mini-filter driver and the user mode tool, wherein the mini-filter driver is configured to map the contents of the image to a hierarchical file system directory; and

a file system filter manager, wherein the mini-filter driver monitors all calls from the filter manager and, when a call is a directory path where the image is mapped, the mini-filter driver intercepts the call and handles the request that triggered the call, thereby providing access to the image file by a file access application without modification to said file access application.

15. A method for servicing, by a computer, an image in an offline state, said image having a file-based image format, said method comprising:

mapping the contents of the image to a hierarchal directory structure with a file system filter driver;

providing access to the contents of the image via a file access application, wherein the file system filter driver monitors and intercepts calls from the file access application to the directory where the image is mapped, said file system filter driver thereby providing access to the contents of the image in the hierarchal directory structure without modification of the file access application; and

receiving edits to the mapped directory of the image via the standard file accessing application; and

modifying the image mapped to the directory to include the received edits, wherein the file system filter driver intercepts the received edits from the file access application and applies the edits to the image file without recreating the image file.

16. The method of claim 15 wherein said modifying comprises unmapping the contents of the image from the directory and applying said received edits to the unmapped image to create a modified file-based image format image.