Hi Curt...
This e-mail message, and any attachments, is intended only for the use of the individual or entity identified in the alias address of this message and may contain information that is confidential, privileged and subject to legal restrictions and penalties regarding its unauthorized disclosure and use. Any unauthorized review, copying, disclosure, use or distribution is strictly prohibited. If you have received this e-mail message in error, please notify the sender immediately by reply e-mail and delete this message, and any attachments, from your system. Thank you. ________________________________ >The missing include files are likely the output of javah and are therefore derived from the corresponding Java files and are not included in the distribution. >If you look at src/ntdll/build.xml, the build sequence should be fairly obvious. The Win32 NTEventLogAppender.dll is built using MinGW to allow the release to be built without requiring developers to have a license of some particular version of Microsoft Visual Studio. However, I do not know of a free compiler for Win64. Thanks for the response. After I posted, I'd done some more googling around and got led to the same conclusion. I started putting together a Visual Studio project for it but then ran across an interesting problem. The event log appender code is treating HANDLE as jint which works okay on a 32 bit environment (aside from a sign issue) since the jdk in includes\win32\jni_md.h defines jint as long. The problem is that the jni_md.h that comes with the windows 64-bit jvm *still* defines jint as long, so HANDLE (a pointer) won't fit in a jint on the 64 bit system. Seems like the easiest way to make NtEventLogAppender 64-bit compatible is to change the log4j jni code to use jlong to hold/deal with HANDLEs. It wastes a few bits on the 32-bit platform but lets you move back and forth. Thanks Mark