I have written an application that allows the Aeris 750GT software (and the Oceanic DataTrans Plus) software to work on XP... It is just a loader, not a replacement.
Follow these instructions to get it to work:
1. Download the zip
2. Browse to the folder that Oceanlog is installed in.
3. Rename the current executable so that it begins with an underscore. For the Aeris software, this means change "750gt.exe" to "_750gt.exe". For Oceanic, change "Downloader.exe" to "_Downloader.exe".
4. Extract the contents of the zip into the Oceanlog folder (the same folder that the above EXE was in).
5. If you are using the Aeris software, rename the new "Downloader.exe" to "750GT.exe". If you are using the Oceanic software, leave the exe name as is.
That should be it...
-Shaun