ASN1Vsx is a Microsoft Visual Studio extension for ASN.1 schema files that makes it faster and easier to create, modify, and validate your ASN.1 schemas. It combines Visual Studio's powerful code editing capabilities and OSS Nokalva's popular and high-quality ASN.1 software. ASN1Vsx provides:
Usage Open an existing ASN.1 schema file or create a new one (the file should have an .asn extension) and start editing.
ASN1Vsx is a free tool in beta stage, we'd appreciate your feedback.