I am having difficulty running a script under ActivePerl 5.8.7 (both build 813 and 815). Running normally it works perfectly but under the debugger (i.e. with -d) I get a message "Perl Command Line Interpreter has encountered a problem and needs to closed. We are sorry for the inconvenience... Please tell Microsoft about this problem" The error message blames a Microsoft DLL: 

  AppName: perl.exe
  AppVer: 5.8.7.815	 
  ModName: msvcrt.dll
  ModVer: 7.0.2600.2180
  Offset: 000373dc

The msvcrt.dll has FileVer: (7.0:2600.2180) and ProdVer: (6.1:8638.2180). I am running Windows XP Professional Version 2002 Service Pack 2.

Has anyone else seen this? Is there something I can do?

I am not a Windows expert, but the DLL would seem to control the virtual terminal (in which I am running the script of course). The msvcrt.dll appears to have been upgraded recently (my company practices remote upgrading of our systems, probably to stop us getting bored). I thought I could use the previous msvcrt.dll under which I never saw the error, but I can't get perl to use a different version from the OS, and if I change the one in the windows directory the OS refuses to startup.

Very occasionally instead of a Windows crash I get a debugger message: 

  

Malformed  UTF-8  character  (unexpected   continuation  byte  0x97,  with  no
  preceding start byte) in substitution iterator at C:/Perl/lib/Carp/Heavy.pm
  line 61. 
Malformed UTF-8 character (unexpected  non-continuation byte 0x03, immediately
  after start byte 0xc8) in substitution iterator at  C:/Perl/lib/Carp/Heavy.pm
  line 61.
    ...

Originally I thought that the XML parsing (done via XML::SAX) was causing the problem so I put in code to check all the XML as it was being read, but that had no effect. Switching between XML::SAX::Expat and XML::SAX::ExpatXS caused the place where the problem manifested to change but didn't fix it. I now think that the loading of shared libraries is moving the bug so this message is a red herring.

Can anyone shed any light?

In reply to ActivePerl dies in msvcrt.dll under Windows by hawtin

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