If you absolutely must install webrec.cab , do so only from a verified, offline Microsoft source you already own. Otherwise, skip it—your computer will thank you.
After installing Webrec.cab, verify that the installation was successful by: Webrec.cab download install
If you cannot get the browser plugin to work, it is highly recommended to use Dahua SmartPSS or gDMSS/iDMSS (mobile), which are dedicated software applications that do not require ActiveX. If you absolutely must install webrec
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