DvrOcx.cab Windows has blocked this software because it cannot verify the publisher. http://www.avoiderrors.net/?p=1810
This was performed on Internet Explorer (IE) 32bit
Some cases just by Enabling Download Signed ActiveX Control is good enough
Error "Windows has blocked this software because it cannot verify the publisher" when you try to access a website which tries to install addons or run executables like installation CAB files.
By default Internet Explorer disable running unsigned ActiveX controls. Unsigned activeX controls are programs that tries to execute a command on your PC, like CAB install files or a ZIP file which do not have a digital signature.
While this is an important security measure on the Internet Explorer browser, if you are sure that the website is a trusted one then you can temporarily disable this security feature to get the website run the required ActiveX and later on re-enable the security.
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