Index: lams_build/conf/unix/lams/lams.dtd
===================================================================
diff -u -r577577fa310b00293b2c06a53adde376062e5839 -r9437b396ea753716b90221a4cef08ff948bfe5c8
--- lams_build/conf/unix/lams/lams.dtd	(.../lams.dtd)	(revision 577577fa310b00293b2c06a53adde376062e5839)
+++ lams_build/conf/unix/lams/lams.dtd	(.../lams.dtd)	(revision 9437b396ea753716b90221a4cef08ff948bfe5c8)
@@ -1,4 +1,4 @@
-<!ELEMENT Lams (ServerURL,LamsHome,TempDir,DumpDir,SMTPServer,LamsSupportEmail,ContentRepositoryPath,UploadFileMaxSize,UploadLargeFileMaxSize,UploadFileMaxMemorySize,ChatServerName,ChatPortNumber,FileManagerDir,ExecutableExtensions,TicketFile,UserInactiveTimeout,AllowMultipleLogin,UseCacheDebugListener,AuthoringClientVersion,MonitorClientVersion,LearnerClientVersion,ServerVersionNumber,ServerLanguage, DictionaryDates)>
+<!ELEMENT Lams (ServerURL,LamsHome,TempDir,DumpDir,SMTPServer,LamsSupportEmail,ContentRepositoryPath,UploadFileMaxSize,UploadLargeFileMaxSize,UploadFileMaxMemorySize,ChatServerName,ChatPortNumber,FileManagerDir,ExecutableExtensions,TicketFile,UserInactiveTimeout,AllowMultipleLogin,UseCacheDebugListener,CleanupPreviewOlderThanDays,AuthoringClientVersion,MonitorClientVersion,LearnerClientVersion,ServerVersionNumber,ServerLanguage, DictionaryDates)>
 <!ELEMENT ServerURL (#PCDATA)>
 <!ELEMENT LamsHome (#PCDATA)>
 <!ELEMENT TempDir (#PCDATA)>
@@ -17,6 +17,7 @@
 <!ELEMENT UserInactiveTimeout (#PCDATA)>
 <!ELEMENT AllowMultipleLogin (#PCDATA)>
 <!ELEMENT UseCacheDebugListener (#PCDATA)>
+<!ELEMENT CleanupPreviewOlderThanDays (#PCDATA)>
 <!ELEMENT AuthoringClientVersion (#PCDATA)>
 <!ELEMENT MonitorClientVersion (#PCDATA)>
 <!ELEMENT LearnerClientVersion (#PCDATA)>
@@ -26,3 +27,14 @@
 <!ELEMENT Dictionary (language, createDate)>
 <!ELEMENT language (#PCDATA)>
 <!ELEMENT createDate (#PCDATA)>
+
+
+
+
+
+
+
+
+
+
+
Index: lams_build/conf/unix/lams/lams.xml
===================================================================
diff -u -rc0662ab693e1886370246632176ad0ebf3e7485c -r9437b396ea753716b90221a4cef08ff948bfe5c8
--- lams_build/conf/unix/lams/lams.xml	(.../lams.xml)	(revision c0662ab693e1886370246632176ad0ebf3e7485c)
+++ lams_build/conf/unix/lams/lams.xml	(.../lams.xml)	(revision 9437b396ea753716b90221a4cef08ff948bfe5c8)
@@ -23,6 +23,8 @@
 	<AllowMultipleLogin>false</AllowMultipleLogin>
 	<!--  Turn on the cache debugging listener. Set to false in production -->
 	<UseCacheDebugListener>false</UseCacheDebugListener>
+	<!--  Number of days after which preview session data may be deleted. Recommend 7 days -->
+	<CleanupPreviewOlderThanDays>7</CleanupPreviewOlderThanDays>
 	<!--  client updates -->
 	<AuthoringClientVersion>1.0</AuthoringClientVersion>
 	<MonitorClientVersion>1.1</MonitorClientVersion>
Index: lams_build/conf/windows/lams/lams.dtd
===================================================================
diff -u -r577577fa310b00293b2c06a53adde376062e5839 -r9437b396ea753716b90221a4cef08ff948bfe5c8
--- lams_build/conf/windows/lams/lams.dtd	(.../lams.dtd)	(revision 577577fa310b00293b2c06a53adde376062e5839)
+++ lams_build/conf/windows/lams/lams.dtd	(.../lams.dtd)	(revision 9437b396ea753716b90221a4cef08ff948bfe5c8)
@@ -1,4 +1,4 @@
-<!ELEMENT Lams (ServerURL,LamsHome,TempDir,DumpDir,SMTPServer,LamsSupportEmail,ContentRepositoryPath,UploadFileMaxSize,UploadLargeFileMaxSize,UploadFileMaxMemorySize,ChatServerName,ChatPortNumber,FileManagerDir,ExecutableExtensions,TicketFile,UserInactiveTimeout,AllowMultipleLogin,UseCacheDebugListener,AuthoringClientVersion,MonitorClientVersion,LearnerClientVersion,ServerVersionNumber,ServerLanguage, DictionaryDates)>
+<!ELEMENT Lams (ServerURL,LamsHome,TempDir,DumpDir,SMTPServer,LamsSupportEmail,ContentRepositoryPath,UploadFileMaxSize,UploadLargeFileMaxSize,UploadFileMaxMemorySize,ChatServerName,ChatPortNumber,FileManagerDir,ExecutableExtensions,TicketFile,UserInactiveTimeout,AllowMultipleLogin,UseCacheDebugListener,CleanupPreviewOlderThanDays,AuthoringClientVersion,MonitorClientVersion,LearnerClientVersion,ServerVersionNumber,ServerLanguage, DictionaryDates)>
 <!ELEMENT ServerURL (#PCDATA)>
 <!ELEMENT LamsHome (#PCDATA)>
 <!ELEMENT TempDir (#PCDATA)>
@@ -17,6 +17,7 @@
 <!ELEMENT UserInactiveTimeout (#PCDATA)>
 <!ELEMENT AllowMultipleLogin (#PCDATA)>
 <!ELEMENT UseCacheDebugListener (#PCDATA)>
+<!ELEMENT CleanupPreviewOlderThanDays (#PCDATA)>
 <!ELEMENT AuthoringClientVersion (#PCDATA)>
 <!ELEMENT MonitorClientVersion (#PCDATA)>
 <!ELEMENT LearnerClientVersion (#PCDATA)>
@@ -36,3 +37,4 @@
 
 
 
+
Index: lams_build/conf/windows/lams/lams.xml
===================================================================
diff -u -r577577fa310b00293b2c06a53adde376062e5839 -r9437b396ea753716b90221a4cef08ff948bfe5c8
--- lams_build/conf/windows/lams/lams.xml	(.../lams.xml)	(revision 577577fa310b00293b2c06a53adde376062e5839)
+++ lams_build/conf/windows/lams/lams.xml	(.../lams.xml)	(revision 9437b396ea753716b90221a4cef08ff948bfe5c8)
@@ -23,6 +23,8 @@
 	<AllowMultipleLogin>false</AllowMultipleLogin>
 	<!--  Turn on the cache debugging listener. Set to false in production -->
 	<UseCacheDebugListener>false</UseCacheDebugListener>
+	<!--  Number of days after which preview session data may be deleted. Recommend 7 days -->
+	<CleanupPreviewOlderThanDays>7</CleanupPreviewOlderThanDays>
 	<!--  used for client updates -->
 	<AuthoringClientVersion>1.0</AuthoringClientVersion>
 	<MonitorClientVersion>1.1</MonitorClientVersion>