For Webex on Windows, Cisco advises using WinINet rather than WinHTTP for proxy configuration settings, describing WinINet as a superset of WinHTTP.

Checked 2026-10-14

WinINet is a superset of WinHTTP; when selecting between the two, you should use WinINet for your Proxy configuration settings.
Vendor
Cisco
Product
Webex App
Subsystem
proxy configuration
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-10-14
Checked
2026-10-14

Sources

Cite this note

APA

WarmTransfer. (2026, October 14). Web proxies and TLS inspection that break UC clients: source note tls-inspection-uc-clients-webex-wininet-proxy. WarmTransfer. https://warmtransfer.net/knowledge/claims/tls-inspection-uc-clients-webex-wininet-proxy

BibTeX

@misc{warmtransfer-claim-tls-inspection-uc-clients-webex-wininet-proxy,
  title  = {Web proxies and TLS inspection that break UC clients: source note tls-inspection-uc-clients-webex-wininet-proxy},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/tls-inspection-uc-clients-webex-wininet-proxy},
  note   = {Source note tls-inspection-uc-clients-webex-wininet-proxy, checked 2026-10-14}
}

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