Hi, I am new to STunnel. I come to know STunnel thru this link: http://www.ibphoenix.com/downloads/Secure_connections_to_Firebird_with_Stunn... Based on the instruction, I tried create a certificate using this line below: openssl ca -config "C:\Program Files (x86)\stunnel\config\openssl.conf" -policy policy_anything -notext -in C:\CA\temp\vnc_server\server.req -out C:\CA\temp\vnc_server\server.crt However, no crt file is created and no error is prompted.  I hope that someone can help me.  Thanks.