@echo off

Set RegQry=HKLM\Hardware\Description\System\CentralProcessor\0

REG.exe Query %RegQry% > checkOS.txt

Find /i "x86" < CheckOS.txt > StringCheck.txt

If %ERRORLEVEL% == 0 (
               Echo "This is 32 Bit Operating System"
               msiexec.exe /i \\YOURFILESERVER\AgentManagement\x86\MOMAgent.msi /qn /l*v c:\MOMAgentinstall.log USE_SETTINGS_FROM_AD=0 USE_MANUALLY_SPECIFIED_SETTINGS=1 MANAGEMENT_GROUP=SCOM2K12R2 MANAGEMENT_SERVER_DNS=YOURSCOMMSSERVER.YOURDOMAIN.COM ACTIONS_USE_COMPUTER_ACCOUNT=1 AcceptEndUserLicenseAgreement=1
) ELSE (
               Echo "This is 64 Bit Operating System"
               msiexec.exe /i \\YOURFILESERVER\AgentManagement\amd64\MOMAgent.msi /qn /l*v c:\MOMAgentinstall.log USE_SETTINGS_FROM_AD=0 USE_MANUALLY_SPECIFIED_SETTINGS=1 MANAGEMENT_GROUP=SCOM2K12R2 MANAGEMENT_SERVER_DNS=YOURSCOMMSSERVER.YOURDOMAIN.COM  ACTIONS_USE_COMPUTER_ACCOUNT=1 AcceptEndUserLicenseAgreement=1
)