Setup: IIS 6/7
Problem: You want to disable Client Certificate Revocation (CRL) Check on IIS
Solution:
IIS 6
cd C:\Inetpub\AdminScripts cscript adsutil.vbs get /w3svc/1/certcheckmode
IIS 7
REGISTRY : HKLM\SYSTEM\CurrentControlSet\Services\HTTP\Parameters\SslBindingInfo DWORD : DefaultSslCertCheckMode Value : 1
Reboot the server.