Omnisharp
You need to download the OmniSharp server from https://github.com/OmniSharp/omnisharp-roslyn/releases
and unpack it to a folder. v1.37.6 should work and has been tested.
To run the OmniSharp server you also need to install .NET Framework 4.5.2 developer pack
https://dotnet.microsoft.com/download/d ... -installer
Add the server in project/sites settings
Server name
OmniSharp
Command
<Path>\omnisharp-win-x86\OmniSharp.exe
Command line arguments
-lsp
Initial folder
<empty>
File extension and language id
.cs=csharp
Communication channel
* Command line (stdio)
Source folders
<Path to the C# solution or .cs files>
Initialize options
{}