diff --git a/doc/chm/VeraCrypt User Guide.chm b/doc/chm/VeraCrypt User Guide.chm
index 77a5ff4d..fb895efa 100644
Binary files a/doc/chm/VeraCrypt User Guide.chm and b/doc/chm/VeraCrypt User Guide.chm differ
diff --git a/doc/html/Command Line Usage.html b/doc/html/Command Line Usage.html
index 544e6d2c..d9318b10 100644
--- a/doc/html/Command Line Usage.html	
+++ b/doc/html/Command Line Usage.html	
@@ -106,6 +106,11 @@ if it is followed by <strong>n </strong>or<strong> no</strong>: don't try to mou
 If it is followed by <strong>n</strong> or <strong>no</strong>: force the display waiting dialog is displayed while performing operations.</td>
 </tr>
 <tr>
+<td><em>/secureDesktop</em></td>
+<td>If it is followed by <strong>y</strong> or <strong>yes</strong> or if no parameter is specified: display password dialog in a dedicated secure desktop to protect against certain types of attacks.<br>
+If it is followed by <strong>n</strong> or <strong>no</strong>: the password dialog is displayed in the normal desktop.</td>
+</tr>
+<tr>
 <td><em>/tokenlib</em></td>
 <td>It must be followed by a parameter indicating the PKCS #11 library to use for security tokens and smart cards. (e.g.: /tokenlib c:\pkcs11lib.dll)</td>
 </tr>