diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index b813706..b4bd65a 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1826,6 +1826,7 @@
 mkdir( {name} [, {path} [, {prot}]])
 				Number	create directory {name}
 mode( [expr])			String	current editing mode
+mzeval( {expr})			any	evaluate |MzScheme| expression
 nextnonblank( {lnum})		Number	line nr of non-blank line >= {lnum}
 nr2char( {expr})		String	single char with ASCII value {expr}
 pathshorten( {expr})		String	shorten directory names in a path
@@ -4102,6 +4103,23 @@
 		"c" or "n".
 		Also see |visualmode()|.
 
+mzeval({expr})							*mzeval()*
+		Evaluate MzScheme expression {expr} and return its result
+		convert to Vim data structures.
+		Numbers and strings are returned as they are.
+		Pairs (including lists and improper lists) and vectors are
+		returned as Vim |Lists|.
+		Hash tables are represented as Vim |Dictionary| type with keys
+		converted to strings.
+		All other types are converted to string with display function.
+		Examples: >
+		    :mz (define l (list 1 2 3))
+		    :mz (define h (make-hash)) (hash-set! h "list" l)
+		    :echo mzeval("l")
+		    :echo mzeval("h")
+<
+		{only available when compiled with the |+mzscheme| feature}
+
 nextnonblank({lnum})					*nextnonblank()*
 		Return the line number of the first line at or below {lnum}
 		that is not blank.  Example: >
diff --git a/runtime/doc/if_mzsch.txt b/runtime/doc/if_mzsch.txt
index ceecdba..484d09a 100644
--- a/runtime/doc/if_mzsch.txt
+++ b/runtime/doc/if_mzsch.txt
@@ -1,4 +1,4 @@
-*if_mzsch.txt*  For Vim version 7.2.  Last change: 2009 Jun 24
+*if_mzsch.txt*  For Vim version 7.2.  Last change: 2010 Jan 19
 
 
 		  VIM REFERENCE MANUAL    by Sergey Khorev
@@ -9,8 +9,9 @@
 1. Commands				|mzscheme-commands|
 2. Examples				|mzscheme-examples|
 3. Threads				|mzscheme-threads|
-4. The Vim access procedures		|mzscheme-vim|
-5. Dynamic loading			|mzscheme-dynamic|
+4. Vim access from MzScheme		|mzscheme-vim|
+5. mzeval() Vim function		|mzscheme-mzeval|
+6. Dynamic loading			|mzscheme-dynamic|
 
 {Vi does not have any of these commands}
 
@@ -142,7 +143,7 @@
 GUI version.
 
 ==============================================================================
-5. VIM Functions					*mzscheme-vim*
+4. Vim access from MzScheme				*mzscheme-vim*
 
 							*mzscheme-vimext*
 The 'vimext' module provides access to procedures defined in the MzScheme
@@ -231,7 +232,13 @@
     (set-cursor (line . col) [window])  Set cursor position.
 
 ==============================================================================
-5. Dynamic loading				    *mzscheme-dynamic* *E815*
+5. mzeval() Vim function				    *mzscheme-mzeval*
+
+To facilitate bi-directional interface, you can use |mzeval| function to
+evaluate MzScheme expressions and pass their values to VimL.
+
+==============================================================================
+6. Dynamic loading				    *mzscheme-dynamic* *E815*
 
 On MS-Windows the MzScheme libraries can be loaded dynamically. The |:version|
 output then includes |+mzscheme/dyn|.
diff --git a/runtime/doc/usr_41.txt b/runtime/doc/usr_41.txt
index 5305ff1..210179d 100644
--- a/runtime/doc/usr_41.txt
+++ b/runtime/doc/usr_41.txt
@@ -868,6 +868,8 @@
 	taglist()		get list of matching tags
 	tagfiles()		get a list of tags files
 
+	mzeval()		evaluate |MzScheme| expression
+
 ==============================================================================
 *41.7*	Defining a function