What is the line of the code running when you get this error? It sounds like a dll is not registered after the IIS patch. Are you running the VBScript from IIS?
Kevin -----Original Message----- From: Cross, Tom [mailto:[EMAIL PROTECTED]] Sent: 30 November 2001 22:38 To: MS-Exchange Admin Issues Subject: LDAP and Exchange 5.5 (E5.5 SP4/ NT4 SP6a) We have a VB script running on a web server that uses LDAP to allow users to modify certain fields in the Exchange schema. It worked fine until we applied the Code Red patch to IIS. Now users get a Provider error '80040154', Class not registered when attempting to locate their mailbox. Does anyone know if this patch breaks certain settings in the schema that may be causing this? Didn't know if alot of you were doing this sort of stuff but I thought I'd take a chance. Thanks in advance, Tom Cross Viasystems Group List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm