Comsol 4.3 working in command line Win7

I'm using Matlab 2012a and Comsol 4.3 under Win7 (x64) and I'm trying to automate the process of opening, exporting and importing an .mph file to comsol server. It is a more complex processing, including Matlab, but I'll try to simplify the steps, in order to get just the commands I need:

Scenario:
1) Start Comsol
2) Open .mph file (File -> Open)
3) Start comsolserver
4) Export model to server (File -> Client Server -> Export Model to Server...)
5) Import model from server (File -> Client Server -> Import Model from Server...)

For the first 3 steps I managed to use:
1+2) comsol -open <filename>
C:\Program Files\COMSOL\COMSOL43\bin\win64>comsol -open E:\filename.mph
[unfortunately with GUI]

3) comsolserver
C:\Program Files\COMSOL\COMSOL43\bin\win64>comsolserver
Port number 2036 was busy, using 2037 instead
COMSOL 4.3 (Build: 151) started listening on port 2037
Use the console command 'close' to exit the application

Is it possible to open a file (step 2) without GUI (as comsol matlab -nodesktop option)? Also, how can I import/export files using Windows command line (steps 4 and 5)?