diff --git a/doc/README.instsvc b/doc/README.instsvc
index bb48cb637d..2fb2c3d27d 100644
--- a/doc/README.instsvc
+++ b/doc/README.instsvc
@@ -73,6 +73,7 @@ Usage
                     [ -a[uto]* | -d[emand] ]
                     [ -g[uardian] ]
                     [ -l[ogin] username [password] ]
+                    [ -i[nteractive] ]
 
           sta[rt]   [ -b[oostpriority] ]
           sto[p]
@@ -181,30 +182,4 @@ user defined on a domain or locally on another server.  In the above examples,
    SERVER\user
 With no prefix, the user is implicitly a local user on the current machine.
 
-
-Instsvc and the "local" client/server protocol
-==============================================
-
-When Firebird is configured to run under a specific user--which is 
-recommended for servers on wide networks--the "local" protocol is 
-unavailable.  
-
-NOTE  Regular user login is not compatible with the local access 
-  protocol.  Local protocol needs the server and the client to 
-  interact by way of an emulated network layer using Windows messages. 
-  A service running under a specific user account runs in its own, 
-  isolated, virtual desktop environment and those messages cannot be 
-  delivered.  It is necessary for local clients to connect using TCP/IP 
-  local loopback protocol (localhost server).
-
-  This is not a bug but, rather, implements a function of Windows 
-  NT/2K/XP design that has some shortcomings.  In future releases, 
-  local protocol will be re-implemented, using proper inter-process 
-  communication mechanisms.
-
-  When Firebird is configured without a specific user (i.e. LocalSystem 
-  user in SERVICE_INTERACTIVE_PROCESS mode, "Allow service to interact 
-  with Desktop"), both TCP/IP local loopback and "local" protocols are 
-  available.  
-
 /* ends */
diff --git a/doc/sql.extensions/README.current_time b/doc/sql.extensions/README.current_time
new file mode 100644
index 0000000000..62745fca7d
--- /dev/null
+++ b/doc/sql.extensions/README.current_time
@@ -0,0 +1,28 @@
+----------------------------------
+CURRENT_TIME and CURRENT_TIMESTAMP
+----------------------------------
+
+  Function:
+    Returns current server system time or date+time values.
+
+  Syntax rules:
+    CURRENT_TIME [(<seconds precision>)]
+    CURRENT_TIMESTAMP [(<seconds precision>)]
+
+  Type:
+    TIME, TIMESTAMP
+
+  Scope:
+    DSQL, PSQL
+
+  Example(s):
+    1. SELECT CURRENT_TIME FROM RDB$DATABASE;
+    2. SELECT CURRENT_TIME(3) FROM RDB$DATABASE;
+    3. SELECT CURRENT_TIMESTAMP(3) FROM RDB$DATABASE;
+
+  Note(s):
+    1. The maximum possible precision is 3 which means accuracy of 1/1000 second
+       (one millisecond). This accurany may be improved in the future versions.
+    2. If no seconds precision is specified, the following values are implicit:
+       - 0 for CURRENT_TIME
+       - 3 for CURRENT_TIMESTAMP