EurekaLog 7 changes way to manage its files. Now files are organized in typical manner for Delphi libraries:
\Lib folder is used to compile your projects.
\Lib folder should be mentioned in search paths either in IDE or your project. When you compile your project - precompiled files from \Lib folder are used. EurekaLog itself is not compiled (which is faster, saves original settings for EurekaLog compilation, does not modify files, UAC-friendly).
There are Debug and Release subfolders in \Lib\<platform> folders.
Release contains files which were compiled with "Use Debug DCUs" option unchecked.
Debug contains files which were compiled with "Use Debug DCUs" option checked.
There are no significant differences in other compilation options for these files. Both have debug information included.
Release folder (proper IDE subfolder - see below) should be listed in library search paths for IDE or project.
Debug folder (proper IDE subfolder - see below) should be listed in debug search paths for IDE or project.
If your application has "Use Debug DCUs" option checked - then files from Debug folder will be used (regardless of Debug/Release profile in your application).
If your application has "Use Debug DCUs" option unchecked - then files from Release folder will be used (regardless of Debug/Release profile in your application).
Important note: there are known binary incompatibilities between Release and Debug versions of stock RTL. If you compile your unit against Debug RTL's DCUs - it may not work with Release RTL's DCUs. That is why we ship both Release and Debug sets. Release set of our DCUs is compiled against Release RTL's DCUs (and, additionally, have no DEBUG_EL_CODE defined), Debug set of our DCUs is compiled against Debug RTL's DCUs (and, additionally, have DEBUG_EL_CODE defined). Therefore, if you compile your project in Release profile, but your search paths pick up Debug folder from EurekaLog - you may get incompatibility errors. Again, be sure that library path points to Release profile of EurekaLog, and you have Debug paths points to Debug profile.
Both Release and Debug folders contain subfolders for various supported IDEs. To map your IDE version to name of folder inside Release and Debug folders - see this article.
Source folder should be added to IDE browsing paths options, so IDE will be able to open and show EurekaLog's .pas files.
Run-time package (EurekaLogCore) from Packages folder is copied to Windows\System32 folder. This is done to avoid altering %PATH% environment variable.
The entire EurekaLog folder in Program Files contains only read-only files which are not modified for typical usage cases. All files which should be writable (such as Demos, bug reports, profiles, translations, etc.) are installed into %APPDATA%\Neos Eureka S.r.l\EurekaLog\ folder.