Visual Studio's Find and Replace has the option "File types:" which allows you to specify specific file types to look in (eg. all .aspx files - by using *.asp).
It is possible to specify file types NOT to look in?
I need to "search in all files except .resx files".
It's not possible to specify file types NOT to look at with the Visual Studio's Find and Replace.
Update in 2025:
The feature was introduced in Visual studio 2019 (16.7). Use the exclamation mark to exclude file types from search:
*.cs, *.xaml.cs, !*.Designer.cs
will look in files of type cs and xaml.cs but will skip Designer.cs files.