Random crash using a TreeCtrl / NSWOnNotify (?)

Hello,

Using wx on Windows XP, I've a random crash (with the "send report" popup of
Windows XP) when I'm making several actions on a TreeCtrl. It's a quite huge
software with a thread feeding a list and an other one reading data from the
list and add them into the TreeCtrl (and I won't be able to publish my
source).

Crash message (send report):
  AppName: python.exe [exact version is: 2.7.3]
  AppVer: 0.0.0.0
  ModName: wxmsw28uh_core_vc.dll
  ModVer: 2.8.12.1
  Offset: 00091f7a
Report details:
  Code: 0xc0000005
  Flag: 0x00000000
  Record: 0x0000000000000000
  Address: 0x0000000001481f7a

I've used "dumpbin.exe" tool, and I think the problem is in the method
"msw::TreeCtrl::mswOnNotify":
  * ordinal hint RVA name
  * 7957 1F14 00091AD0 ?MSWOnNotify@wxTreeCtrl@@UAE_NHJPAJ@Z

- Is it a known problem?
- Do you think I can avoid/limit it?
- Can I disable the call on nswOnNotify (during my treatment or
permanently)?

Thank,

Fred

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