Obtain the list of installed programs

1. How to list all applications installed on a specific computer?
2. The win32_product WMI class represents all applications installed through Windows installer. However, this WMI class may not list all the programs that appear in 'add/delete project. One way to solve this problem is to collect information about installed programs from the Registry (Note: not all programs write information to the Registry during installation ). This topic provides two methods to achieve this goal: use scripts to directly read information in the registry, and use MOF files and scripts to obtain this information from WMI.
4. 1.
5. Run the following script to list the applications installed on your computer. Script for directly collecting information from the Registry Using WMI system registry provider:
7. Strhost = "."
8. Const HKLM = & h80000002
9. Set objreg = GetObject ("winmgmts: //" & strhost &_
10. "/Root/Default: stdregprov ")
11. Const strbasekey = _
12. "Software/Microsoft/Windows/CurrentVersion/uninstall /"
13. Objreg. enumkey HKLM, strbasekey, arrsubkeys
15. For each strsubkey in arrsubkeys
16. Intret = objreg. getstringvalue (HKLM, strbasekey & strsubkey ,_
17. "Displayname", strvalue)
18. If intret <> 0 then
19. Intret = objreg. getstringvalue (HKLM, strbasekey & strsubkey ,_
20. "Quietdisplayname", strvalue)
21. End if
22. If (strvalue <> "") and (intret = 0) then
23. Wscript. Echo strvalue
24. End if
25. Next
28. 2.
29. The following MOF file and its supporting script demonstrate another method for obtaining installed applications from the registry. To use a MOF file, follow these steps:
31. Step 1: copy the following MOF syntax to notepad and save it as a. mof file (for example, products. MOF ).
33. Qualifier dynamic: toinstance;
34. Qualifier providerclsid: toinstance;
35. Qualifier classcontext: toinstance;
36. Qualifier propertycontext: toinstance;
38. [Dynamic, provider ("regprov "),
39. Providerclsid ("{fe9af5c0-d3b6-11ce-a5b6-00aa00680c3f }"),
40. Classcontext
41. ("Local | HKEY_LOCAL_MACHINE // software // Microsoft // windows // CurrentVersion // Uninstall ")
42. ]
43. Class products {
44. [Key] string keyname;
45. [Read, propertycontext ("displayname")] string displayname;
46. [Read, propertycontext ("displayversion")] string displayversion;
47. [Read, propertycontext ("installlocation")] string installlocation;
48. };
50. Step 2: Enter mofcomp products. MOF in the command prompt line to save the MOF file to the WMI Repository.
52. Step 3: Use the following script to obtain data after MOF is saved to the repository.
54. Strcomputer = "."
55. Set WMI = GetObject ("winmgmts: //" & strcomputer &_
56. "/Root/Default ")
57. Set colitems = WMI. execquery ("select * from products ")
58. For each objitem in colitems
59. Wscript. Echo "displayname:" & objitem. displayname
60. Wscript. Echo "displayversion:" & objitem. displayversion
61. Wscript. Echo "installlocation:" & objitem. installlocation
62. Wscript. Echo "keyname:" & objitem. keyname
63. Next

 

1. Static void listalladdedapplication ()
2. {
3. Registrykey key = registry. localmachine. opensubkey (@ "software/Microsoft/Windows/CurrentVersion/uninstall ");
4. Console. writeline ("subkeycount: {0}", key. subkeycount );
5. // Key.
7. String [] names = key. getsubkeynames ();
8. Foreach (string s in names)
9. {
10. Console. writeline ("{0}", S );
11. }
12. }