Experts only

Rollback
Measured in bytes. (default: 4096)
Max Hash Speed
Measured in mebibytes per second. (no default)
Write Buffer Size
Measured in kibibytes. (default: 16)
Max Tab Rows
The maximum number of rows of tabs that DC++ will make. Any tabs that do not fit will be accessible through the chevron at the right of the tab control. (default: 2)
PM history
Number of line history that will show in a PM if logging is enabled. (default: 0)
Search history
Number of old searchlines that will be shown on searchpage. (default: 10)