I'm using Google App Engine Launcher with SDK release 1.9.40 for Windows.
It seems that I am unable to save extra command line flags for my application in my application settings. Any flags I write in "Launch Settings" don't save after updating.
I've used the SDK on a Mac as well and the Mac version of the Launcher does save my flags.
I would prefer to use GAE Launcher on Windows than run the dev server through the command line and was wondering if I was missing something here.
There is an open issue about this problem: https://code.google.com/p/googleappengine/issues/detail?id=13070
As a workaround while this is not solved you can modify manually the google_appengine_projects.ini which is located in C:\Users\USERNAME\Google. You have to add a line for each additional parameter, e.g.:
path = [PROJECT_PATH]
admin_port = 8006
name = [PROJECT_NAME]
port = 9080
flag0 = [FIRST_FLAG]
flag1 = [SECOND_FLAG]