I have Exchange 2003 SP1 installed that I upgraded from Exchange 2000. I used to have OWA functioning with my Exchange 2000 installation, but now when I try to connect to OWA, I get the error HTTP/1.1 503 Service Unavailable After it exchange authenticates my account. I read an article KB305030, but this did not help.
This article below is what fixed the problem, but I would not go through all of the effort to perform a parallel install. http://support.microsoft.com/kb/837285/ Follow these steps to replace the oledb32.dll file: 1. Find your Windows Server 2003 cd and place it in the drive 2. Click START 3. Click Run 4. Type CMD 5. Hit enter 6. Navigate to your CD-Rom drive in the DOS window(usually D:) 7. Type: cd \i386, then hit ENTER 8. Type: expand oledb32.dl_ <Some location on your hard driver> 9. Reboot into SAFE MODE with Networking 10. Open windows explorer to c:\program files\common files\system\ole db 11. Rename oledb32.dll to oledb32.old 12. Copy the file you expanded in Step 8 to c:\program files\common files\system\ole db 13. Open windows explorer to <WINSYSDIR>\dllcache (<WINSYSDIR> is usually c:\winnt\system32 or c:\windows\system32) 14. Rename oledb32.dll to oledb32.old 15. Copy the file you expanded in Step 8 to <WINSYSDIR>\dllcache 16. Type: regsvr32 c:\program files\common files\system\ole db\oledb32.dll 17. Reboot the server You should now have access via OWA. _____ From: Illini319 [mailto:illini319@newsgroups.nospam] Posted At: Wednesday, August 17, 2005 11:33 AM Posted To: microsoft.public.exchange2000.misc Conversation: OWA Error Subject: OWA Error I have Exchange 2003 SP1 installed that I upgraded from Exchange 2000. I used to have OWA functioning with my Exchange 2000 installation, but now when I try to connect to OWA, I get the error HTTP/1.1 503 Service Unavailable After it exchange authenticates my account. I read an article KB305030, but this did not help.
