Question:
I get CertEnroll::Cx509Enrollment::p_InstallResponse: ASN1 bad tag value met. 0x8009310b on IIS 7 and I am unable to install my certificate.
Answer:
Please follow the instructions provided by COMODO: https://support.comodo.com/index.php?/Default/Knowledgebase/Article/View/656/17/asn1-bad-tag-value-met-0x8009310b
The instructions apply to both COMODO PositiveSSL and GEOTRUST RapidSSL certificates.