Problems in Hosting Asp.Net 3.5 Arabic website Oracle DB and Crystal Report in IIS 7 Windows Server 2012 R2 Machine

In this post I want to share my experiences during the environment setup: We have a very old application developed back in 2012 , this application was deployed in windows server 2003 machine ,suddenly machine crash this month and client request us to deploy same application in Windows Server 2012 R2 Machine, in two days I have successfully deployed our application. Below are some issues that I have face, may be it will be helpful for someone or for me in future :) 1) I have installed Oracle 10g client an it runs smoothly , then I deployed Asp.net web application , when I run the app Arabic text was nor showing properly after some hour of R & D I found the solution I have change the systems from control panel > Region and Language >Administrative Tab 2) After this Restart the application and now Arabic character comes properly :) 3)Now Crystal report was not working properly because I forgot to put TNS Name in Oracle Client directory ,after TNS name file reports also work fine 4) But Crystal report is not print out from print button neither it export in PDF I am still looking for the solution :) 5)Another issue some of my request contain arabic characters that was setting values in database as ?????? .The work around was simple 6)I have put NS_LAND in my environment variable AMERICAN_AMERICA.WE8MSWIN1256. and restart my machine . 7)Now request strings are showing correct arabic text . Now every thing is working fine :)