For those who like to install DWA with Sametime integration (Domino 8.0.1 & Sametime 8.0.1)
After you finish installing Sametime 8.0.1 and upgrade your mail template to Mail R8
First you want to make sure you have the connection documents created:
1. From the IBM® Lotus® Domino™ Administrator, click the Configuration tab and expand the Server
2. Click Connections
3. Select the appropriate server and click "Connection." (If connection does not exist -> Add Connection)
On the Domino Web Access server:
• Enter the Sametime server's name in the "Destination server" field. For example: Sametime/Acme.
• Enter the Domino Web Access server's name in the "Source domain" field.
• Enter the Sametime server's name in the "Destination domain" field.
On the Sametime server:
• Enter the Domino Web Access server's name in the "Destination server" field.
• Enter the Sametime server's name in the "Source domain" field.
• Enter the Domino Web Access server's name in the "Destination domain" field.
Open the DWA/Mail server Document
Create Web -> SSO Configuration
Enter the DNS Domain
Enter the Domino Server Names (all the participating mail serves)
Save & Close
Replicate around the servers involved
Go to the DWA\Mail Server Document -> Internet Protocols -> Domino Web Engine -> Session Authentication: Multiple Servers (SSO)
Web SSO Configuration: LtpaToken (case sensitive)
Set up the Instant Contact List in Domino Web Access
Domino Web Access 8.0 has its own Contact List client that replaces Sametime Connect for browsers, which was used in 7.0. Follow the steps below to set up the new Domino Web Access Contact List.
Configure Java servlet support
1. From the Domino Administrator client, open server document for the Domino Web Access server in edit mode.
2. Click the Internet Protocols - Domino Web Engine tab.
3. In the Java™ Servlets section, for the field Java servlet support, select "Domino Servlet Manager" from the list.
4. Save and close the document, and then restart the server.
To enable instant messaging and set the Sametime server for all Domino Web Access users at one time
Editing the Configuration Settings document for Domino Web Access
1. From the IBM® Lotus® Domino™ Administrator, click the Configuration tab and expand the Server
2. Click Configurations.
3. Select the Configuration Settings document for the Domino Web Access mail server(s) and click "Edit Configuration."
4. Select the Domino Web Access tab.
5. Under Instant Messaging change it to the settings to the following.
7. Editing the Configuration Settings document for Sametime
8. Click the Configuration tab and expand the Server
9. Click Configurations.
10. Select the Configuration Settings document for the Domino Web Access mail server(s) and click "Edit Configuration."
11. Select the Domino Web Access tab.
12. Under Instant Messaging make sure the settings are the same as the one on the Domino Web Access server.
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Instant Messaging features: Enable (default) to turn on instant messaging and live names (awareness) for users who have secrets and token or Lightweight Third Party Authentication (LTPA) token, and an IBM® Lotus® Sametime® server assigned.
Online awareness: Enable (default) to turn on live names for any user who has also enabled awareness via a user preference.
Allow secrets and tokens authentication: Enable (default) -- to use and prefer secrets and tokens authentication if available.Disable -- if an LTPA token is present, disable this field to use the LTPA token instead.
Set an IBM Lotus Sametime server hostname for all DWA users (useful for clustered configurations): Type the name of the Sametime server to set an instant messaging hostname (messaging.ibm.com for example) for all Lotus Domino Web Access users. Eliminates the need to populate the Sametime server field value within every user's Person document.
Loading \stlinks from Domino application server: Enable (default) -- to load \stlinks from the Domino application server. Disable -- to load the \stlinks directory from the Sametime server defined in the user's Person document. Useful if running different versions of Sametime servers within your organization and using a version of Domino prior to 6.5.2.
Prefer DWA 8 Contact List: Enable (default) -- to use the Lotus Domino Web Access Chat client. Disable -- to use the Sametime Connect for browsers Chat client. Supported only for backward compatibility with Domino Web Access 7 clients on a Domino 8 server.
Prefer Sametime Connect for browsers (DWA 7 only): Enable (default) -- to load the Sametime Connect for browsers (6.5.1 or later) as the Chat client. Disable -- to use the Lotus Domino Web Access Chat client.
Pass the Organization name (commonly used when Domino is configured for xSP): For xSPs only. The default is disabled.Enable to include the user's Organization as part of the name format. For example:CN=John Doe/O=Acme
Directory type used by IBM Lotus Sametime server: Domino Directory (or leave blank) -- if the Sametime server and Lotus Domino Web Access server both use the Domino Directory.
Domino LDAP -- if the Sametime server uses the Domino LDAP directory and the Lotus Domino Web Access server uses the Domino Directory.
Domino LDAP for xSP -- (xSP servers only) If the Lotus Domino Web Access xSP server uses the Domino Directory and the Sametime server uses the Domino LDAP server.
Non-Domino LDAP-- if the Sametime server and the Lotus Domino Web Access server both use an LDAP directory other than Domino LDAP. 6. Save the document and restart the Domino server.
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Edit the Sametime Configuration file
5. Open the Sametime Configuration application (stconfig.nsf) on the Sametime server.
6. From the "By Form" view, open the ComunityConnectivity document.
7. Add the IP address of the Domino Web Access server to Community Trusted IPs field.
8. Save and close the document, and then restart the Sametime server.
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If you receive the following error  : "Bad HTTP status: 404" when accessing DWA IM Contact List
Lotus Software Knowledge Base Document
Title: Error: "Bad HTTP status: 404" when accessing DWA IM Contact List
Doc #: 1258358
URL: http://www.ibm.com/support/docview.wss?rs=899&uid=swg21258358
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If servlets.properties already exists add the following content to the end of the servlets.properties file:
servlet.DWABuddyList.code=com.lotus.dwa.stbuddy.DWABuddyList
After adding the following parameter you might notice that when accessing DWA IM Contact List you receive the following
error  
: "Bad HTTP status: 500
This situation occurs because the "stcommsrvrtk.jar" file is missing. You must place this file in the DOMINO\jvm\lib\ext directory on the DWA server.
How to obtain the missing file:
1. Double-click the following link: http://www14.software.ibm.com/webapp/download/nochargesearch.jsp?q=sametime+8.0
(File is also attached to this e-mail)
(See attached file: stcommsrvrtk.jar)
2. Download the Lotus Sametime 8.0.1 Software Developer Kit (SDK) Multiplatform Multilingual package.
3. Extract the package. The stcommsrvtk.jar file is in this kit as follows: \st80sdk\client\stjava\bin\stcommsrvtk.jar
4. Place this file in the Domino\jvm\lib\ext directory on the DWA server.
5. Restart HTTP.