If you ever receive the following error,
"Error: btsdeploy is not recognized as an internal or external command"
Reason: This usually happens if the BizTalk server is not able to recognize the BTSDeploy.exe command, this can happen if you had recently installed the BizTalk server and have not restarted the machine.
Solution: restart the machine after successful BizTalk installation
Note: BTSDeploy is deprecated and has been replaced by BTSTask with the new release, but is included to support scripts that administrators have developed for previous versions of BizTalk Server.