Logparser - input log file encoding

I’ve been trying to parse data from some error log files on a newsroom system (Windows server). Everyhing has worked fine on my test files.

But unfortunately the real life log files proved to be UTF-16LE encoded. No changes are detected by the logparser input.

As it works fine after changing the encoding to UTF 8:
iconv -f UTF-16LE -t UTF-8 EXCEP.LOG > EXCEP_8.LOG
I’m quite sure that this must be the problem.

Any ideas how to solve this?