Issue #304: trouble getting Kallithea hosted on IIS (conservancy/kallithea)

[Int]

New issue 304: trouble getting Kallithea hosted on IIS
https://bitbucket.org/conservancy/kallithea/issues/304/trouble-getting-kallithea-hosted-on-iis

Int:

I tried to get Kallithea hosted on IIS 10 and followed your instructions from
https://kallithea.readthedocs.io/en/latest/installation_iis.html
which seem to have been tested on IIS 7

I got so far that I get a login page, but the page is missing the web style (it's just text and boxes without graphics) - see screenshot in attachment.
After I login with admin account I get an 404 error:

No webpage was found for the web address: http://hg2.vision.local/_admin/login?came_from=%2F
HTTP ERROR 404

"python -m win32traceutil" is showing no errors, just this output:

Collecting Python Trace Output...
2018-01-20 18:45:21.924 INFO  [kallithea.model] initializing db for sqlite:///C:\inetpub\kallithea/kallithea.db?timeout=60
2018-01-20 18:45:21.924 INFO  [kallithea.lib.auth] getting information about all available permissions
2018-01-20 18:45:23.676 INFO  [kallithea.lib.base] IP: 192.168.124.55 User: <AuthUser('id:1[default] auth:True')> accessed /
2018-01-20 18:45:23.707 INFO  [kallithea.lib.auth] user <AuthUser('id:1[default] auth:True')> authenticated with regular auth @ HomeController:index
2018-01-20 18:45:23.785 INFO  [kallithea.RequestWrapper] IP: 192.168.124.55 Request to / time: 1.750s

All of that happens before the login attempt.

I also enabled tracing on IIS but the 404 error is not logged.

Do you have any idea what might be wrong here?
Or some hints on how to proceed with debugging?