Hi Max,
1) Do you have the help files installed? Check the \Help directory (for example C:\Program Files\Syncfusion\Essential Suite\3.0.1.0\Help).
If you have the files then there was a problem during install. A lot of times these problems are due to VS.NET. You need to close VS.NET and then run the batch file: RegSuite30Help.bat for help integration.
2) After running the batch file, you also should ensure that the filtered by option should be set to
No Filter to view Syncfusion documentation. A few times users have set filters and hence were unable to view the documentation.
3) Note that we have made several improvements to our Documentation and with the next release it will be available online and you should be able to also use filters.
Regards
Arun