Windows Batch Script: download file using bitsadmin without ssl certification validation

• For the web server that does not support content range requests. You have to set priority to FOREGROUND to force the job to run synchronously. Otherwise, error: BG_E_INSUFFICIENT_RANGE_SUPPORT (0x80200013)

  bitsadmin /transfer MyJob /priority FOREGROUND  "http://your-site.org/file.zip" "C:\test\file.zip"
  

• For the web server with self signed certificate or could not pass the ssl certificate validation, you cannot use a single bitsadmin /transfer command and the job has to be run asynchronously. You have to bitsadmin /create a job and bitsadmin /SetSecurityFlags to value 30

  bitsadmin /create MyJob1
  bitsadmin /addfile MyJob1 "https://your-site.org/file.zip" "C:\test\file.zip"
  bitsadmin /SetSecurityFlags MyJob1 30
  bitsadmin /SetPriority MyJob1 FOREGROUND
  bitsadmin /resume MyJob1
  bitsadmin /monitor || bitsadmin /cancel MyJob1
  

see also

• Bitsadmin Documentation
• Bitsadmin: set security flags
• Ignore certificate authority (self-signed) with BITS
• BITS return values
• Issues with BITS (Error code lookup)
• Other possible error codes for BITS
• Best Practices When Using BITS
• powershell: starts-bitstransfer