Created attachment 24289 [details] Patch terminates native/common/jk_util.c:supported_properties array with NULL The 1.2.26 was re-compiled with VS2008. The workers file contained accidentally a worker property introduced by 1.2.27. The IIS connector crashes during initialization with memory access error. The problem is, that native/common/jk_util.c:supported_properties array does not end with NULL. In case of wrong property, the pointer will go out of bounds in native/common/jk_util.c:jk_is_valid_property function. The officail binary release DLL of 1.2.26 from Apache will print: [error] jk_map.c (403): The attribute 'worker.gw1.ping_mode' is not supported - please check the documentation for the supported attributes. and does not cause crash. This could be because VC++ 6.0 (which is used for official binary builds as I understand) uses different memory alignment/layout or something else. Anyway, I think it is safer not to permit run pointer out of array and explicitly mark the end of list with NULL. Proposed fix is attached as patch.
Thanks for the analysis and patch. It has been applied to 1.2.x as revision 816596 and will be part of 1.2.29. Sorry for the inconvenience.