{"id":24017,"date":"2025-04-05T04:04:49","date_gmt":"2025-04-05T11:04:49","guid":{"rendered":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/?p=24017"},"modified":"2025-10-20T07:32:53","modified_gmt":"2025-10-20T14:32:53","slug":"removal-of-deprecated-disco-wsdl-aspx-pages-from-sharepoint-online","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/removal-of-deprecated-disco-wsdl-aspx-pages-from-sharepoint-online\/","title":{"rendered":"Removal of deprecated DISCO & WSDL aspx pages from SharePoint Online"},"content":{"rendered":"

Updated October 20, 2025<\/strong>: Removal of these pages have started in late October 2025 and will be fully completed by end of November 2025.<\/p>\n

\n

Updated September 8, 2025<\/strong>: After further review, the original deprecation decision and goal remain unchanged. At this time, we are\u00a0deferring the effective date<\/b>. We will communicate the timeline when we are ready to proceed and remove these web pages. We apologize for any inconvenience.<\/p>\n

\n

The ASP.NET DISCO and WSDL pages were available for customers who wanted to create a proxy for their web services. This is outdated technology which should not be any more used. These pages will be removed from the SharePoint Online completed in mid of September 2025<\/del>.<\/p>\n

We recommend using Microsoft Graph<\/a> for all the needed remote operations where possible. If you are an existing customer who’s using ASP.NET DISCO and WSDL pages as your web services proxy, you should have received communications with the deletion details and remediation steps.<\/p>\n

The deprecated and deleted DISCO pages and WSDL pages are listed below.<\/p>\n

DISCO pages:<\/strong><\/p>\n

    \n
  1. spdisco.aspx<\/li>\n
  2. userprofilechangeservicedisco.aspx<\/li>\n
  3. spscrawldisco.aspx<\/li>\n
  4. spellcheckdisco.aspx<\/li>\n
  5. searchdisco.aspx<\/li>\n
  6. profileimportexportservicedisco.aspx<\/li>\n
  7. portalapi.aspx<\/li>\n
  8. businessdatacatalogdisco.aspx<\/li>\n
  9. asynchronouswebpartservicedisco.aspx<\/li>\n
  10. spsdisco.aspx<\/li>\n
  11. PublishingServiceDisco.aspx<\/li>\n
  12. wsdisco.aspx<\/li>\n
  13. Websdisco.aspx<\/li>\n
  14. webpartpagesdisco.aspx<\/li>\n
  15. Viewsdisco.aspx<\/li>\n
  16. versionsdisco.aspx<\/li>\n
  17. UserGroupdisco.aspx<\/li>\n
  18. spsearchdisco.aspx<\/li>\n
  19. sitesdisco.aspx<\/li>\n
  20. SiteDataDisco.aspx<\/li>\n
  21. sharepointemailwsdisco.aspx<\/li>\n
  22. SharedAccessdisco.aspx<\/li>\n
  23. Permissionsdisco.aspx<\/li>\n
  24. Peopledisco.aspx<\/li>\n
  25. Meetingsdisco.aspx<\/li>\n
  26. Listsdisco.aspx<\/li>\n
  27. Imagingdisco.aspx<\/li>\n
  28. Formsdisco.aspx<\/li>\n
  29. DWSdisco.aspx<\/li>\n
  30. DspStsdisco.aspx<\/li>\n
  31. diagnosticsdisco.aspx<\/li>\n
  32. Copydisco.aspx<\/li>\n
  33. Authenticationdisco.aspx<\/li>\n
  34. alertsdisco.aspx<\/li>\n
  35. AdminDisco.aspx<\/li>\n
  36. ExcelServicedisco.aspx<\/li>\n
  37. slidelibrarydisco.aspx<\/li>\n
  38. TaxonomyClientServicedisco.aspx<\/li>\n
  39. socialdataservicedisco.aspx<\/li>\n
  40. publishedlinksservicedisco.aspx<\/li>\n
  41. FormsServicesDisco.aspx<\/li>\n
  42. FormsServiceProxyDisco.aspx<\/li>\n
  43. workflowdisco.aspx<\/li>\n
  44. officialfiledisco.aspx<\/li>\n
  45. EAWorkflowdisco.aspx<\/li>\n
  46. discoveryinternalservicedisco.aspx<\/li>\n<\/ol>\n

    WSDL pages list:<\/strong><\/p>\n

      \n
    1. userprofileservicewsdl.aspx<\/li>\n
    2. spscrawlwsdl.aspx<\/li>\n
    3. spellcheckwsdl.aspx<\/li>\n
    4. searchwsdl.aspx<\/li>\n
    5. profileimportexportservicewsdl.aspx<\/li>\n
    6. businessdatacatalogwsdl.aspx<\/li>\n
    7. asynchronouswebpartservicewsdl.aspx<\/li>\n
    8. PublishingServiceWsdl.aspx<\/li>\n
    9. wswsdl.aspx<\/li>\n
    10. Webswsdl.aspx<\/li>\n
    11. webpartpageswsdl.aspx<\/li>\n
    12. Viewswsdl.aspx<\/li>\n
    13. versionswsdl.aspx<\/li>\n
    14. UserGroupwsdl.aspx<\/li>\n
    15. spsearchwsdl.aspx<\/li>\n
    16. siteswsdl.aspx<\/li>\n
    17. SiteDataWsdl.aspx<\/li>\n
    18. sharepointemailwswsdl.aspx<\/li>\n
    19. SharedAccesswsdl.aspx<\/li>\n
    20. Permissionswsdl.aspx<\/li>\n
    21. Peoplewsdl.aspx<\/li>\n
    22. Meetingswsdl.aspx<\/li>\n
    23. Listswsdl.aspx<\/li>\n
    24. Imagingwsdl.aspx<\/li>\n
    25. Formswsdl.aspx<\/li>\n
    26. DWSwsdl.aspx<\/li>\n
    27. DspStswsdl.aspx<\/li>\n
    28. diagnosticswsdl.aspx<\/li>\n
    29. Copywsdl.aspx<\/li>\n
    30. Authenticationwsdl.aspx<\/li>\n
    31. alertswsdl.aspx<\/li>\n
    32. AdminWsdl.aspx<\/li>\n
    33. ExcelServicewsdl.aspx<\/li>\n
    34. slidelibrarywsdl.aspx<\/li>\n
    35. TaxonomyClientServicewsdl.aspx<\/li>\n
    36. socialdataservicewsdl.aspx<\/li>\n
    37. publishedlinksservicewsdl.aspx<\/li>\n
    38. FormsServicesWsdl.aspx<\/li>\n
    39. FormsServiceProxyWsdl.aspx<\/li>\n
    40. workflowwsdl.aspx<\/li>\n
    41. officialfilewsdl.aspx<\/li>\n
    42. EAWorkflowwsdl.aspx<\/li>\n
    43. discoveryinternalservicewsdl.aspx<\/li>\n<\/ol>\n

       <\/p>\n

      What are the implications?<\/strong><\/h3>\n

      As of\u00a0Sept 15, 2025<\/em>, the listed ASP.NET DISCO and WSDL pages will not be available.<\/del><\/p>\n

      Required action<\/strong><\/h3>\n

      Do not create web service proxies from these DISCO and WSDL endpoints. Directly use the Microsoft Graph API<\/a>.<\/p>\n

      Next steps<\/strong><\/h3>\n

      Plan to perform the remediation steps and execute them as soon as possible. If you have any questions about this deletion, contact Microsoft Support.<\/p>\n

       <\/p>\n","protected":false},"excerpt":{"rendered":"

      We are removing DSICO and WSDL pages from the SharePoint Online by mid September 2025.<\/p>\n","protected":false},"author":69078,"featured_media":24020,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[166],"tags":[162],"class_list":["post-24017","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sharepoint","tag-sharepoint"],"acf":[],"blog_post_summary":"

      We are removing DSICO and WSDL pages from the SharePoint Online by mid September 2025.<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/wp-json\/wp\/v2\/posts\/24017","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/wp-json\/wp\/v2\/users\/69078"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/wp-json\/wp\/v2\/comments?post=24017"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/wp-json\/wp\/v2\/posts\/24017\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/wp-json\/wp\/v2\/media\/24020"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/wp-json\/wp\/v2\/media?parent=24017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/wp-json\/wp\/v2\/categories?post=24017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/microsoft365dev\/wp-json\/wp\/v2\/tags?post=24017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}