Xailer & OZ Software

I get an error when lauching an application that uses the Explorer bar. I
have recompiled all the sources.
Other projects, where the Explorer bar is not used run fine.
Regards,
Stephan
******************************* Error log file
********************************
Exe: D:SourcesCheckPointCheckPoint.exe
Version: 0.7.0.0
Date: 08/12/08
Time: 16:25:29
Available Memory: 1167460
Current Area: 1
---------------------------- Compiler
Information -----------------------------
Xailer Version: Xailer 2.0.0 Version 2.0 beta
Compiler: xHarbour build 1.1.0 Intl. (SimpLex) (Rev. 6182) PCode
Version: 9
C/C++ Compiler: Borland C++ 5.5.1 (32 bit)
Windows Platform: Windows XP Professional 5.01.2600 Service Pack 2
--------------------- Internal Error Handling
Information ---------------------
Subsystem Call: BASE
System Code: 1004
Default Status: .F.
Description: Scope Violation <HIDDEN>
Operation: PROCESSCONTROL
Arguments: [ 1] = Type: O Val:
Involved File:
Dos Error Code: 0
Trace Through:
TEXPLORERBAR:PROCESSCONTROL (0)
TSCROLLINGWINCONTROL:INSERTCONTROL (90)
TEXPLORERBAR:INSERTCONTROL (84)
TCONTROL:CREATEHANDLE (278)
TPANEL:CREATEHANDLE (64)
TSTDCONTROL:CREATE (244)
TWINCONTROL:CREATE (78)
TPANEL:CREATE (60)
TMAINFORM:CREATEFORM (680)
TMAINFORM:NEW (182)
MAIN (19)