I try both steps with quotes without quotes
1)
storescp 1234 +tls C:\Openssl\bin\T1\ C:\Openssl\bin\T1\ --add-cert-file C:\Openssl\bin\T1\my-cert.pem
storescu localhost 1234 +tls C:\Openssl\bin\T1\ C:\Openssl\bin\T1\ --add-cert-file C:\Openssl\bin\T1\my-cert.pem C:\Users\xxx\Desktop\DCMTK\TT
2)
storescp 1234 +tls "C:\Openssl\bin\T1\" "C:\Openssl\bin\T1\" --add-cert-file "C:\Openssl\bin\T1\my-cert.pem"
storescu localhost 1234 +tls "C:\Openssl\bin\T1\" "C:\Openssl\bin\T1\" --add-cert-file "C:\Openssl\bin\T1\my-cert.pem" "C:\Users\xxx\Desktop\DCMTK\TT"
till now no solution
storescp: DICOM storage (C-STORE) SCP
error:unkown option +tls