I found a bug.

I am using HeidiSQL portable 9.1. If I press F5 very quickly, the program will display the crash view. Below is the bug report.

date/time : 2014-12-15, 15:25:45, 89ms
computer name : LIGHT
user name : zhushijie <admin>
registered owner : dbc / Microsoft
operating system : Windows 7 Service Pack 1 build 7601
system language : Chinese (Simplified)
system up time : 6 hours 35 minutes
program up time : 11 seconds
processors : 2x Intel(R) Pentium(R) CPU G2020 @ 2.90GHz
physical memory : 536/3487 MB (free/total)
free disk space : (C:) 28.79 GB (D:) 33.62 GB
display mode : 1440x900, 32 bit
process id : $153c
allocated memory : 48.78 MB
largest free block : 1.23 GB
executable : heidisql.exe
exec. date/time : 2014-11-11 20:38
version : 9.1.0.4867
compiled with : Delphi XE5
madExcept version : 4.0.8.1
callstack crc : $dc4ea1c8, $86b68cda, $86b68cda
exception number : 1
exception class : EAccessViolation
exception message : Access violation at address 00837657 in module 'heidisql.exe'. Read of address 0000004C.

main thread ($1d98):
00837657 heidisql.exe dbconnection 2982 +3 TDBConnection.ServerVersionInt
0094b5ff heidisql.exe Main 6117 +43 TMainForm.popupDBPopup
0066dff7 heidisql.exe Vcl.Menus TPopupMenu.DoPopup
0066b156 heidisql.exe Vcl.Menus TMenuItem.Click
0066ccb3 heidisql.exe Vcl.Menus DoClick
0066cbed heidisql.exe Vcl.Menus DoClick
0066cd9f heidisql.exe Vcl.Menus TMenu.IsShortCut
005b6eac heidisql.exe Vcl.Controls TWinControl.IsMenuKey
005b6f21 heidisql.exe Vcl.Controls TWinControl.CNKeyDown
005affb1 heidisql.exe Vcl.Controls TControl.WndProc
005b4ad1 heidisql.exe Vcl.Controls TWinControl.WndProc
0070a9ed heidisql.exe VirtualTrees 27144 +32 TBaseVirtualTree.WndProc
005b4114 heidisql.exe Vcl.Controls TWinControl.MainWndProc
0053b600 heidisql.exe System.Classes StdWndProc
77c8702b ntdll.dll KiUserCallbackDispatcher
007027bf heidisql.exe VirtualTrees 22506 +2 TBaseVirtualTree.DoStartOperation
006fed55 heidisql.exe VirtualTrees 20096 +2 TBaseVirtualTree.StartOperation
00714a38 heidisql.exe VirtualTrees 33425 +9 TBaseVirtualTree.SortTree
0070cb06 heidisql.exe VirtualTrees 28206 +35 TBaseVirtualTree.EndUpdate
00958a21 heidisql.exe Main 9916 +47 TMainForm.editDatabaseTableFilterChange
00951f41 heidisql.exe Main 7939 +3 TMainForm.DBtreeExpanded
00701353 heidisql.exe VirtualTrees 21657 +2 TBaseVirtualTree.DoExpanded
00715572 heidisql.exe VirtualTrees 33810 +294 TBaseVirtualTree.ToggleNode
006f8d7c heidisql.exe VirtualTrees 16618 +2 TBaseVirtualTree.SetExpanded
009520e1 heidisql.exe Main 8010 +24 TMainForm.RefreshTree
00942c96 heidisql.exe Main 3905 +5 TMainForm.actRefreshExecute
0053a8ef heidisql.exe System.Classes TBasicAction.Execute
005944c7 heidisql.exe Vcl.ActnList TCustomAction.Execute
0053a78f heidisql.exe System.Classes TBasicActionLink.Execute
0066b13f heidisql.exe Vcl.Menus TMenuItem.Click
0066ccb3 heidisql.exe Vcl.Menus DoClick
0066cd9f heidisql.exe Vcl.Menus TMenu.IsShortCut
005b6eac heidisql.exe Vcl.Controls TWinControl.IsMenuKey
005b6f21 heidisql.exe Vcl.Controls TWinControl.CNKeyDown
005affb1 heidisql.exe Vcl.Controls TControl.WndProc
005b4ad1 heidisql.exe Vcl.Controls TWinControl.WndProc
0070a9ed heidisql.exe VirtualTrees 27144 +32 TBaseVirtualTree.WndProc
005b4114 heidisql.exe Vcl.Controls TWinControl.MainWndProc
0053b600 heidisql.exe System.Classes StdWndProc
77c8702b ntdll.dll KiUserCallbackDispatcher
779bee1a kernel32.dll BaseThreadInitThunk