Please do not install absolutely portable version.
The portable version does not have a file that is being officially supported.
When I examined as there are files that move around rapids and, in multiple sites in a file named "oCam v_version name_Portable.7z"
It has been confirmed in version that was created crackers.
The development company, it is not possible to guarantee any of the portable version.
In addition, the portable version, because it is the version that was created cracker, it is not known viruses such as what modulation and if they were included, I hope to not install absolutely.
There are only archive of the famous download site and http://ohsoft.net site to deploy ocam.
I recommend to install only the setup version of the official site always.