DOS BAT file help -- 2

I have a BAT file if produces a file of installed apps, if a file created is empty I want it to launch a web site This works for ME: =============== MD c:\temp_swc Powershell -command Get-WmiObject -Class Win32_Product >c:\temp_swc\[login to view URL] findstr /c:"SQL Server 2017" c:\temp_swc\[login to view URL] >c:\temp_swc\[login to view URL] =========== what I want to do is, if the text file, [login to view URL], created is blank, execute a web page using internet explorer "[login to view URL]" next If Exist c:/temp/*.iso >c:\temp_swc\[login to view URL] if this is empty, pop up a message to the user to move a copy of the ISO to the c:/temp folder