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When you try to use the Microsoft Outlook Web Access (OWA) Logon.asp file on a BackOffice Small Business Server-based computer, you may receive the following error message:
"Microsoft VBScript runtime error '800a01a8' Object required: 'Application(...)' /exchange/USA/logon.asp, line 12"
This issue can be caused by the Microsoft Exchange virtual directory in Microsoft Internet Information Services (IIS) not being set to run as a program (this is designated by the blue box icon in IIS Manager). If the virtual directory is not created as a program during the installation of Exchange OWA, OWA will not run. The installation of OWA should create the virtual directory as a program. However, if this does not occur, no error messages are generated.
To resolve this issue:
If the attempt to create a program does not work, this may indicate a problem with Transaction Server (Transaction Server processes all IIS virtual directories running as programs), and the permissions that are associated with the installed Transaction Server packages. If this is the case, you may receive the following error message:
To test Transaction Servers configuration, start the Internet Service Manager to manage (IIS), and then double-click the following items to expand them:
An error occurred reading or setting a configuration parameter (0x80110501)
Microsoft Transaction ServerIf the permissions on the Transaction Server Packages are not set correctly, you may be prompted to reset them during the preceding steps. When you are prompted to do so, allow the permissions to be reset to the system defaults. After the permissions are reset, restart the server.
After you restart the server, repeat the preceding steps. If at this point the virtual directory can be set to a program, use Exchange Setup to uninstall and then reinstall OWA.
This problem may be indicative of an unsuccessful Microsoft Windows NT Option Pack (NTOP) installation. To verify your NTOP installation, review the following information:
(https://support.microsoft.com/kb/246311/EN-US/ )Err Msg: An Error Occurred Getting or Setting a Configuration Parameter 0x80110401