Thank you for your bug report.

Is there additional information in the IIS or PHP error log?

I am unfamiliar with the error_log. I found it in the php.ini file, but enabling it and setting the file name to php_errors.log, did not seem to do anything. Even when I disable the HOSTS section, still not error_log created. Where is this supposed to reside? 

Nothing in the IIS logs during this crash.

Ok, I figured out the error_log thing. I cleared the log. Enable the HOST section, restarted IIS and loaded a page. IIS crashed with the 500 error. Nothing written to the log.

Does it actually _crash_ ? 500 internal error isn't necessarily sign of 
a crash..

Ok, well, it's a 500 error and there's nothing in any error log. Call it what you like. :)

It does under certain circumstances, for example using [HOST=localhost:8080]. Trying to figure out hwow to debug the .y :)

 	php5_debug.dll!php_ini_parser_cb(_zval_struct * arg1=0x00c2c47c, _zval_struct * arg2=0x00000000, _zval_struct * arg3=0x00000000, int callback_type=2, _hashtable * target_hash=0x105a5680)  Line 279 + 0x8 bytes	C
>	php5_debug.dll!ini_parse()  Line 282 + 0x21 bytes	C
 	php5_debug.dll!zend_parse_ini_file(_zend_file_handle * fh=0x00c2d744, unsigned char unbuffered_errors='
', int scanner_mode=0, void (_zval_struct *, _zval_struct *, _zval_struct *, int, void *)* ini_parser_cb=0x102ee580, void * arg=0x105a5680)  Line 206 + 0x5 bytes	C
 	php5_debug.dll!php_init_config()  Line 588 + 0x1a bytes	C
 	php5_debug.dll!php_module_startup(_sapi_module_struct * sf=0x00423008, _zend_module_entry * additional_modules=0x004230a0, unsigned int num_additional_modules=1)  Line 1911 + 0x5 bytes	C
 	php-cgi.exe!php_cgi_startup(_sapi_module_struct * sapi_module=0x00423008)  Line 859 + 0x13 bytes	C
 	php-cgi.exe!main(int argc=1, char * * argv=0x02ec3c10)  Line 1602 + 0xd bytes	C
 	php-cgi.exe!__tmainCRTStartup()  Line 586 + 0x19 bytes	C
 	php-cgi.exe!mainCRTStartup()  Line 403	C

It says to use MSVC6, but I am using the VC9 version of PHP, so shouldn't I use Visual C 2008 for this? Will Express work or do I need to do the without compiler method?

I apologize, but I am unfamiliar with the backtrace process and I don't understand how to do this. If you can give me more specific instructions. I don't have VC (just VC express) and it doesn't appear that this can be used. I have tried with the Debug Diagnostics method, but either I am not doing it correctly, or this is a crash that is not being detected.

I already provided one. But if you can provide one for your case, see http://bugs.php.net/bugs-generating-backtrace-win32.php

Maybe you catched another issue than the one I used.

I didn't even see that. I tried to follow those directions. Hopefully, they can figure it out from yours.

I tried to reproduce this on OSX and Linux without luck.

The error looks like it's in main/php_ini.c from the backtrace, but I'm not sure whats up with the zval.

I was not able to reproduce the HOST issue. The backtrace does not crash in php_ini.c but before.

FYI, this happens with the PATH section enabled as well.

And it also happens for me on IIS6 (Server 2003.)

Mass closing session of bugs is bad for QA :) > assigned.

We usually have closed fixed bugs..

Please try using this snapshot:

  http://snaps.php.net/php5.3-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/

No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".