diff --git a/mystic/HISTORY.txt b/mystic/HISTORY.txt
index fac2a0b..bf5ef95 100644
--- a/mystic/HISTORY.txt
+++ b/mystic/HISTORY.txt
@@ -4205,3 +4205,8 @@
 
    If the newuserapp.mpx exists in the scripts directory, it will be
    executed instead of the normal application process.
+
+ + New MPL function IsUser takes a string value which can contain either
+   a user realname, handle, or user perm index number.  If the user exists,
+   it will return a TRUE result or FALSE if the user does not exist.
+
diff --git a/mystic/bbs_user.pas b/mystic/bbs_user.pas
index 00a9bf7..cf863b2 100644
--- a/mystic/bbs_user.pas
+++ b/mystic/bbs_user.pas
@@ -90,21 +90,24 @@ Begin
   FillChar (ThisUser, SizeOf(ThisUser), #0);
   FillChar (Security, SizeOf(Security), #0);
 
-  UserNum             := -1;
-  ThisUser.ScreenSize := Config.DefScreenSize;
-  ThisUser.Theme      := Config.DefThemeFile;
-  ThisUser.DateType   := 1;
-  ThisUser.HotKeys    := True;
-  ThisUser.RealName   := 'Unknown';
-  ThisUser.Handle     := ThisUser.RealName;
-  ThisUser.EditType   := 1;
-  ThisUser.Birthday   := CurDateJulian;
-  ThisUser.Gender     := 'U';
-  ThisUser.FirstOn    := CurDateDos;
-  ThisUser.TimeLeft   := Config.LoginTime;
-  ThisUser.Archive    := Config.qwkArchive;
-  ThisUser.LastFGroup := Config.StartFGroup;
-  ThisUser.LastMGroup := Config.StartMGroup;
+  UserNum              := -1;
+  ThisUser.ScreenSize  := Config.DefScreenSize;
+  ThisUser.Theme       := Config.DefThemeFile;
+  ThisUser.StartMenu   := Config.DefStartMenu;
+  ThisUser.DateType    := 1;
+  ThisUser.HotKeys     := True;
+  ThisUser.RealName    := 'Unknown';
+  ThisUser.Handle      := ThisUser.RealName;
+  ThisUser.EditType    := 1;
+  ThisUser.Birthday    := CurDateJulian;
+  ThisUser.Gender      := 'U';
+  ThisUser.FirstOn     := CurDateDos;
+  ThisUser.TimeLeft    := Config.LoginTime;
+  ThisUser.Archive     := Config.qwkArchive;
+  ThisUser.LastFGroup  := Config.StartFGroup;
+  ThisUser.LastMGroup  := Config.StartMGroup;
+  ThisUser.UseLBQuote  := True;
+  ThisUser.UseFulLChat := True;
 
   IgnoreGroup   := False;
   InChat        := False;
diff --git a/mystic/mpl_common.pas b/mystic/mpl_common.pas
index 94c1511..e0b4391 100644
--- a/mystic/mpl_common.pas
+++ b/mystic/mpl_common.pas
@@ -286,8 +286,9 @@ Begin
           AddProc    ({$IFDEF MPLPARSER} 'strmci',         {$ENDIF} 's',      iString);  // 535
           AddProc    ({$IFDEF MPLPARSER} 'getcharxy',      {$ENDIF} 'bb',     iChar);    // 536
           AddProc    ({$IFDEF MPLPARSER} 'getattrxy',      {$ENDIF} 'bb',     iByte);    // 537
-          AddProc    ({$IFDEF MPLPARSER} 'putthisuser'     {$ENDIF} '',       iNone);    // 538
+          AddProc    ({$IFDEF MPLPARSER} 'putthisuser',    {$ENDIF} '',       iNone);    // 538
           AddProc    ({$IFDEF MPLPARSER} 'putuser',        {$ENDIF} 'l',      iNone);    // 539
+          AddProc    ({$IFDEF MPLPARSER} 'isuser',         {$ENDIF} 's',      iBool);    // 540
 
 { END OF PROCEDURE DEFINITIONS }
 
diff --git a/mystic/mpl_execute.pas b/mystic/mpl_execute.pas
index 6352acc..f132cfe 100644
--- a/mystic/mpl_execute.pas
+++ b/mystic/mpl_execute.pas
@@ -1883,6 +1883,10 @@ Begin
           End;
     538 : PutUserVars(Session.User.ThisUser);
     539 : PutUserRecord(Param[1].L);
+    540 : Begin
+            TempBool := Session.User.FindUser(Param[1].S, False);
+            Store (TempBool, 1);
+          End;
   End;
 End;