This is makeindex, version 2.15 [MiKTeX 2.9.6960 64-bit] (kpathsea + Thai support).
Scanning style file ./Diss_JohZiegmann.ist.............................done (29 attributes redefined, 0 ignored).
Scanning input file Diss_JohZiegmann.acn....done (12 entries accepted, 0 rejected).
Sorting entries....done (43 comparisons).
Generating output file Diss_JohZiegmann.acr....done (18 lines written, 0 warnings).
Output written in Diss_JohZiegmann.acr.
Transcript written in Diss_JohZiegmann.alg.