Hi Herbert - if you haven't already done so, just download the module. When you unzip it, it is indeed the CometAlignment-pxm.dll you're looking for.
Unzip the file, then move or copy it to the C:/Program Files/PixInsight/bin/ subdirectory, then start PI.
Open the Process menu, and at the bottom you'll see "Modules". Choose "Install Modules...". A dialog box pops up with no new modules in it. Press "Search" in bottom left corner of dialog, and the new module will be identified as "new" and added to the selection list. Select it from the list, and hit "Install". The Process Console will do its thing and show the following when done:
Module Id ............ CometAlignment
Version .............. 01.00.03.0001
Language ............. eng: English
Development status ... <* Unspecified *> (release)
Release date ......... 2012/12/25
Author ............... Nikolay Volkov
Copyright ............ Copyright (c) 2012 Nikolay Volkov
Trade marks .......... PixInsight
Original file name ... CometAlignment-pxm.dll
API version .......... 138
Module Description:
CometAlignment module
You're done!
Rod
