CB Protection: Server install fails with the log code "Return Code: 1 on execution of C:\Windows\SysWOW64\cscript.exe."

Products

• Carbon Black App Control (formerly Cb Protection)

Issue/Introduction

• Install fails with no visible error, rolling back its changes
• Logs show the following error:

  Executing C:\Windows\SysWOW64\cscript.exe "C:\Users\USERNAME\AppData\Local\Temp\GUID\GUID\icfutil.js" /silent  /s:ParityServer /e:41002 /i:41002 /n:localhost /p:tcp 
  
  Return Code: 1 on execution of C:\Windows\SysWOW64\cscript.exe.

• Attempting to run a JS file manually in CScript fails with an error:

  There is no script engine for file extension .js

Environment

• CB Protection Server: All Versions
• Microsoft Windows Server: All Supported Versions

Cause

The default file handler for .JS files is set incorrectly in the registry

Resolution

1. Open Regedit as an Administrator
2. Navigate to HKEY_CLASSES_ROOT\.js
3. Set the (Default) reg_sz key to JSFile
4. Re-run the Server installer