Access redirector and entry reflector

• US 7,406,676 B2
• Filed: 11/17/2004
• Issued: 07/29/2008
• Est. Priority Date: 09/18/2000
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Bond, Barry, Khalid, Atm Shafiqul
• Primary Examiner(s): CHAVIS, JOHN Q
• Application Number:
  US10/990,693
• Publication Number:
  US 20050114300A1
• Time in Patent Office: 1,350 Days
• Field of Search: 717/167, 717/100
• US Class Current: 717/100
• CPC Class Codes: G06F 9/44505 Configuring for program initiating, e.g. using registry, configuration files

Abstract

When using a common configuration data structure (e.g., “registry”), the access redirector and entry reflector promotes compatibility and interoperability between differing versions of program modules.

Claims

1. A method for controlling access to storage loci in a registry, the method comprising the acts of:

receiving an attempt to access a first storage locus in a registry from a program module, the registry being an hierarchical common configuration data structure stored on a storage component of a computing system, where individual elements of the data structure are addressable for storing data therein or accessing data stored therein and the registry is separate from and not part of a Basic Input-Output System (BIOS) of the computing system; and

redirecting the attempt so that it, instead, accesses at least a second locus in the registry, wherein the redirecting act is carried out in such a maimer that the program module is unaware that the attempt is being redirected to the second locus;

wherein;

the first storage locus in the registry is reserved for configuration information for a first version of the program module; and

the second storage locus in the registry is reserved for configuration information for a second version of the program module.

2. A method as recited in claim 1, wherein the receiving act is carried out by intercepting the attempt, which is an attempt by the program module to access configuration information for the program module at the first storage locus in the registry.

3. A method as recited in claim 1 further comprising redirecting the attempt so that it accesses a third locus in the registry, wherein such redirecting act is carried out in such a manner that the program module is unaware that the attempt is being redirected to the third locus.

4. A method as recited in claim 1 further comprising examining a registry loci-redirection table, wherein the redirecting is based, at least in part, upon information in the table.

5. A method as recited in claim 1, wherein the program module is an application.

6. A method for replicating data in storage loci of a registry having multiple storage loci, the method comprising the acts of:

searching multiple storage loci of a registry for modified data, the registry being an hierarchical common configuration data structure stored on a storage component of a computing system, where individual elements of the data structure are addressable for storing data therein or accessing data stored therein and the registry is separate from and not part of a Basic Input-Output System (BIOS) of the computing system;

finding modified data in a first storage locus of the registry;

copying selected modified data from the first storage locus to at least a second storage locus of the registry.

7. A method as recited in claim 6 further comprising copying selected modified data from the first storage locus to at least a third storage locus of the registry.

8. A method as recited in claim 6, wherein only storage loci listed in a loci-redirection table are searched during the searching.

9. A method comprising:

obtaining a triggering event that signals that a method as recited in claim 6 be initiated;

initiating such method as recited in claim 6.

10. A method as recited in claim 9 further comprising sending a triggering event when data in the registry is altered.

11. A method as recited in claim 6, wherein:

the first

storage locus is reserved for configuration information for a first version of a program module;

the second storage locus is reserved for configuration information for a second version of the program module.

12. A method of access redirection and entry reflection, the method comprising:

controlling access to storage loci in a registry having multiple storage loci, the registry being an hierarchical common configuration data structure stored on a storage component of a computing system, where individual elements of the data structure are addressable for storing data therein or accessing data stored therein and the registry is separate from and not part of a Basic Input-Output System (BIOS) of the computing system, the controlling comprising;

intercepting an attempt to access a first storage locus in a registry from a program module;

redirecting the attempt so that it, instead, accesses a second locus in the registry, wherein the redirecting act is carried out in such a manner that the program module is unaware that the attempt is being redirected to the second locus;

replicating modified data in storage loci of the registry, the replicating comprising;

searching multiple storage loci of the registry for modified data;

finding modified data in at least one storage locus of the registry;

copying selected modified data from the storage locus to at least another storage locus of the registry.

13. One or more computer storage media storing an operating system comprising:

a registry containing storage loci for storing configuration information, the registry being an hierarchical common configuration data structure stored on the one or more computer storage media, where individual elements of the data structure are addressable for storing data therein or accessing data stored therein and the registry is separate from and not part of a Basic Input-Output System (BIOS) of a computing system; and

a loci-access redirector comprising;

an interceptor configured to intercept an attempt to access a first storage locus in a registry from a program module;

a redirector configured to redirect the attempt so that it, instead, accesses at least a second locus in the registry, wherein the redirecting act is carried out in such a manner that the program module is unaware that its attempt is being redirected to the second locus.

14. One or more computer storage media as recited in claim 13, wherein the program module is an application.

15. One or more computer storage media as recited in claim 13, wherein:

the first storage locus is reserved for configuration information for a first version of a program module;

the second storage locus is reserved for configuration information for a second version of the program module.

16. One or more computer storage media storing an operating system comprising:

a registry containing storage loci for storing configuration information, the registry being an hierarchical common configuration data structure stored on the one or more storage media, where individual elements of the data structure are addressable for storing data therein or accessing data stored therein and the registry is separate from and not part of a Basic Input-Output System (BIOS) of the computing system; and

a loci-entry reflector comprising;

a searcher configured to search multiple storage loci of the registry for modified data and for finding modified data in a first storage locus of the registry;

a replicator configured to copy selected data from the first storage locus to at least a second storage locus of the registry.

17. One or more computer storage media as recited in claim 16, wherein:

the first storage locus is reserved for configuration information for a first version of a program module;

the second storage locus is reserved for configuration information for a second version of the program module.

18. One or more computer storage media having a registry stored thereon, the registry being an hierarchical common configuration data structure stored on a storage component of a computing system, where individual elements of the data structures are addressable for storing data therein or accessing data stored therein and the registry is separate from and not part of a Basic Input-Output System (BIOS) of the computing system, the media comprising:

a first storage locus containing configuration information for a first version of a program module;

a second storage locus containing configuration information for a second version of the program module.

19. One or more computer storage media as recited in claim 18 further comprising a third storage locus containing a table that relates the first storage locus to the second storage locus.