This debug option is not available in VS Express.
The way around this is to manually edit the *.csproj.user
file in your project folder, and add the following PropertyGroup
:
<PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
<StartAction>Program</StartAction>
<StartProgram>C:\Path\To\program.exe</StartProgram>
<StartArguments>/Something</StartArguments>
</PropertyGroup>
You will need to make sure that the Configuration and Platform (Debug|x86 in my example) match yours.
Cheers