I've rolled back to v1.9.3 in order to gain access to the Dashboard again:osTicket Version
v1.9.3 (bba9ccc)
Server Software
Microsoft-IIS/8.5
PHP Version
5.5.11
MySQL Version
10.0.13
PHP Extensions
gdlib
Used for image manipulation and PDF printing
imap
Used for email fetching
xml
XML API
xml-dom
Used for HTML email processing
json
Improves performance creating and processing JSON
gettext
Improves performance for non US-English configurations
mbstring
Highly recommended for non western european language content
phar
Highly recommended for plugins and language packs
PHP Settings
cgi.fix_pathinfo =
1
"1" is recommended if AJAX is not working