When I using SSLSCAN to check the cipher suites of my server, I found that there are three status: Accepted, Rejected and Failed. After that, I tried to disable the ciphers of RC2(40bits). I created a new key "Enabled"=dword:00000000 under [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC2 40/128]. The SSLSCAN showed EXP-RC2-CBC-MD5 (40bits) was "failed" but the rest of RC2 （40bits） ciphers were "Rejected".
So this made me confused: what the difference between failed and rejected? I came across all the information on the google, including SSLSCAN main page, but haven't find a clear answer.