How to run iisexpress in the background without blocking script?

Question

I am currently trying to run iisexpress during appveyor build in order to run integration tests. However the script gets blocked at start /wait iisexpress /path:%APPVEYOR_BUILD_FOLDER% /port:%iis_port%. My windows scripting skills are not as good as I hoped and google has not been friendly so far. Here is the concerned bit of the script below:

cd \Program Files\IIS Express

start /wait iisexpress /path:%APPVEYOR_BUILD_FOLDER% /port:%iis_port%

echo "Start operations"

Here is a capture of where the script blocks

_{(source: iamnguele.com)}

Any help is welcome.

Answer 1

I found what was the issue, actually I needed to add the parameter -PassThru to have the process running in the background.

Here is my updated code:

cd \Program Files\IIS Express

start /wait iisexpress /path:%APPVEYOR_BUILD_FOLDER% /port:%iis_port% -PassThru

echo "Start operations"

And the new result: