From the same you sing SMS by Keytech App:-
- Go to https://keytechsecurity.com
- Select Login
- Enter User Name ( admin Email )
- Enter Password ( you admin Password)
- page will redirect you to your account
- Go to Setting dropdown list
- Select Download
- Scroll down Select SMS download
- start the download
Once download complete
- right click on SMS_setup file you just downloaded
- run as administrator ( you must run as administrator)
- Popup window will require your Product Key( this found in the same setting dropdown list under Licenses)
- Copy the license Number and paste it in the SMS Product Key required
- follow instructions