If you just want to dive in and get going, this page gives you a quick overview of Entrian Source Search. For all the details, see the Online Manual.
When you first install Entrian Source Search, it adds a new tool window to Visual Studio. It's a good idea to dock this along the bottom of your workspace.
Entrian Source Search builds a full-text index of all the text files in one or more folder trees - when you load a solution that it hasn't seen before, you tell it which root folder(s) to index. (So it indexes files that Visual Studio doesn't know about - ChangeLogs, documentation, header files, everything.)
Indexing is pretty much automatic; for more details on how it works and how to configure it, see Indexing.
This is the Entrian Source Search window - normally you'd dock it along the bottom of Visual Studio. For full details on what all the pieces do, see the Search Window.
Entrian Source Search supports a wide range of searching and filtering options - here's a summary. To see this summary from within the Search window, hover your mouse over the Search box and it will appear in a tooltip.
|Search for a word
|Search for several words (with Phrase Search turned off)
|Search for a phrase (with Phrase Search turned off)
|Search for a phrase (with Phrase Search turned on)
|Single-token wildcard (an asterisk next to alphanumeric characters expands to single-word matches)
|"this * that"
|Multi-token wildcard, single line (an asterisk on its own matches unlimited tokens on the same line)
|"this *:100 that"
|Multi-token wildcard, limited to 100 tokens, multi-line
|To search for an asterisk, escape it with a backslash
|loose:"this and that"
|Search for words that are near to each other, in any order
|loose50:"A B C"
|Tune the looseness: allow gaps of 50 tokens
|Search only within *.cpp files
|Search only within matching directories
|Search all files except ChangeLogs
|Show only files modified in the past 30 minutes
|Show only files not modified in the past 3.5 days
For all the details on the syntax and options for searching and filtering, see Searching.
The main keyboard shortcuts are (by default):
For a full list of all the available keyboard shortcuts, see Keyboard shortcuts.
This page only skims the surface - see the full manual for all the depth: