How to run multiple odoo services of diiferent version E.g odoo-10 and odoo-11 together in windows8

Question

I have installed an independent postgresSql version 9.1 (x86). Then i simply had installed odoo-11 service without the postgresql because i already have it. After that I had to download the odeo11 source code and configure it in pycharm here is the screen shot of my odoo configuration.I had used different postgresql user for each odoo version.

here is my odoo.conf

[options] 
; This is the password That Allows database operations: 
; admin_passwd = admin 
db_host = localhost 
db_port = 5432 
db_user = openpg 
dbfilter =odoo11
db_password = openpgpwd 
addons_path = d: \ odoo \ addons 
xmlrpc_port = 8088

Futher i had debugged with pycharm and i was successfull in installing odoo-11

But i had installed odoo10 using same method then my odoo11 install got conflicted with odoo11 and console shows me error

Skipping database pos10 as its base version is not 11.0.1.3

But my odoo10 is working fine now. here is my odoo.conf of odoo10

[options]
; This is the password that allows database operations:
; admin_passwd = admin
db_host = localhost
db_port = 5432
db_user = openpg1
dbfilter=odoo10
db_password = 123
addons_path = D:\odoo-10.0\odoo-10.0\addons
xmlrpc_port = 8080 

here is the configuration of odoo10 instance

Answer 1

Yes, you can run multiple odoo server at the same time like I am running odoo10, odoo11, odoo12 and as well odoo13 at the same time.

1 - First their ports should be different.

2 - And run it by using terminal or cmd or pycharm.

Note: Different versions never run on same browser window you have to open other window in private mode.