TC 8.1 X64 when copy files with a error

[hyl]

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Total Commander 8.01
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Access violation.
Access violation
Windows 7 SP1 6.1 (Build 7601)

Please report this error to the Author, with a description
of what you were doing when this error occurred!

Stack trace (x64):40F30C
40EB72 898B1D 7EED7A 894AE3 768A9BD1 43F4E3 43F971 71F0DC
43F917 404B2C
Press Ctrl+C to copy this report!
Continue execution?
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是(Y) 否(N)
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[ghisler(Author)]

Do you use a tool which shows extra icons in the Windows title bar?

Unfortunately the reported error isn't in Total Commander itself. Here is the analyzed stack trace:

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Stack trace
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$000000000040F30C
$000000000040EB72
$0000000000898B1D DELIVERMESSAGE, line 105 of lclmessageglue.pas
$00000000007EED7A WINDOWPROC, line 2530 of ./win32/win32callback.inc
$0000000000894AE3 BUTTONWNDPROC, line 1643 of ./win32/win32wsstdctrls.pp
$00000000768A9BD1
$000000000043F4E3 TAPPLICATION__HANDLEMESSAGE, line 1280 of ./include/application.inc
$000000000043F971 TAPPLICATION__RUNLOOP, line 1413 of ./include/application.inc
$000000000071F0DC TWIDGETSET__APPRUN, line 60 of ./include/interfacebase.inc
$000000000043F917 TAPPLICATION__RUN, line 1401 of ./include/application.inc
$0000000000404B2C main, line 401 of TOTALCMD.lpr
$0000000000002002

It seems that TC is getting a Windows message, and that message is handled by something not part of the program.

[hyl]

Yes,I add many icons to total commander's bar and with this
drivelib=%COMMANDER_PATH%\drives.dll
This error appeared only once from i install 8.01.

[ghisler(Author)]

No, that's not what I meant. I meant an external program which shows icons in the title bar of ALL programs including Total Commander. There are translation tools and task manager tools which do that. The internal TC icons do not do this.