1 files changed, 14 insertions, 8 deletions
diff --git a/UMain.pas b/UMain.pas
index 119e7cc..b163cb7 100644
--- a/UMain.pas
+++ b/UMain.pas
@@ -1691,8 +1691,8 @@ begin
   end else begin
     Ext := WideUpperCase(Trim(Copy(String(Data^.FDisplayName), LastDelimiter('.', String(Data^.FDisplayName)) + 1, Length(String(Data^.FDisplayName)) - LastDelimiter('.', String(Data^.FDisplayName)))));
     //  Test for known internal functions
-    if (Ext = 'SFV') or (Ext = 'MD5') then miVerifyChecksumsClick(Self) else
-    if (Ext = 'CRC') or (Ext = '001') then miMergeFilesClick(Self) else
+    if ((Ext = 'SFV') or (Ext = 'MD5')) and (Engine is TLocalTreeEngine) then miVerifyChecksumsClick(Self) else
+    if ((Ext = 'CRC') or (Ext = '001')) and (Engine is TLocalTreeEngine) then miMergeFilesClick(Self) else
     if not ((Engine is TLocalTreeEngine) and HandleVFSArchive(String(Data^.FName), IncludeTrailingPathDelimiter(Engine.Path) + String(Data^.FName), String(Data^.FName), '/')) then
     if (not ConfUseURI) or ((Engine is TVFSEngine) and TVFSEngine(Engine).ArchiveMode)
       then RunFile(IncludeTrailingPathDelimiter(Engine.Path) + String(Data^.FName), Engine, -1)
@@ -1932,17 +1932,23 @@ end;
 procedure TFMain.UpdateCaption;
 var LeftPanel: boolean;
     s: string;
+    Engine: TPanelEngine;
 begin
   if LeftListView.Focused then LeftPanel := True else
   if RightListView.Focused then LeftPanel := False else
   LeftPanel := LeftLastFocused;
-  if LeftPanel then begin
-    if LeftPanelEngine.GetPrefix <> '' then s := Format(ConstFullPathFormatStr, [LeftPanelEngine.GetPrefix, LeftPanelEngine.Path])
-                                       else s := LeftPanelEngine.Path;
-  end else
-    if RightPanelEngine.GetPrefix <> '' then s := Format(ConstFullPathFormatStr, [RightPanelEngine.GetPrefix, RightPanelEngine.Path])
-                                        else s := RightPanelEngine.Path;
+
+  if LeftPanel then Engine := LeftPanelEngine
+               else Engine := RightPanelEngine;
+
+  if Engine.GetPrefix <> '' then s := Format(ConstFullPathFormatStr, [Engine.GetPrefix, Engine.Path])
+                            else s := Engine.Path;
   Caption := Format('Tux Commander  [%s]', [StrToUTF8(s)]);
+
+  miVerifyChecksums.Enabled := Engine is TLocalTreeEngine;
+  miCreateChecksums.Enabled := Engine is TLocalTreeEngine;
+  miSplitFile.Enabled := Engine is TLocalTreeEngine;
+  miMergeFiles.Enabled := Engine is TLocalTreeEngine;
 end;
 
 procedure TFMain.UpdatePanelInfo;