Stunnix VBS-Obfus is a suite of Perl applications. It requires a working Perl interpreter version 5.8.x installed somewhere in your system. It can be downloaded for free e.g. from here: http://downloads.activestate.com/ActivePerl/Windows/5.8/
No additional Perl modules are required for running Stunnix VBS-Obfus.
Since Stunnix VBS-Obfus is a pure Perl application, it is as portable as Perl itself (i.e. it will run on most Unix OSes, Windows, and MacOS). It is distributed as a .tar.gz (gzip'ed tar archive) that should be extracted to any directory you like. On Windows platforms, tar.gz files can be extracted using trial version of WinZIP or RAR archiver from http://www.rarlabs.com
For Windows users it's highly recommended to unpack Stunnix VBS-Obfus to the directory with name not containing any spaces.
If you are not upgrading the previous version of the Stunnix VBS-Obfus, you have to invoke the setup.pl script from the lib/vbs-obfus/ directory, like this.
perl setup.pl
On Windows platforms it's enough to open folder lib/vbs-obfus/ in Explorer and double-click on file setup.pl.
That script will display the license, upon accepting it it will ask for registration code you've received when purchasing Stunnix VBS-Obfus ; it will write a special file with default configuration to lib/vbs-obfus/vbs-obfus-settings.pl that will be read by vbs-obfus on each invokation. On Windows platforms it will also create a folder Stunnix VBS-Obfus in the Programs folder of the Start menu. At the end of installation on Windows platforms, you will be presented with ability to immediately start Project Manager - an advanced User Interface for Stunnix VBS-Obfus.
It's not recommended to run the setup.pl script if you are upgrading from the previous version of Stunnix VBS-Obfus, unless otherwise is stated in the release notes for new version of this product.
After these steps Stunnix VBS-Obfus is ready for use.
For users of Windows platforms: when upgrading from a version of Stunnix VBS-Obfus that didn't contain Project Manager, you have to open lib/vbs-obfus/utils/ folder in Explorer and execute setupwin32.pl by double-clicking on it in order to add folder for Stunnix VBS-Obfus to Programs menu.
Stunnix Project Manager can be started at any moment on any platform by executing bin/startui.pl (Windows users may just use menu items in Programs menu or visit bin/ folder with Explorer and double-click on startui.pl).
In case you'll let the setup.pl script to overwrite lib/vbs-obfus/vbs-obfus-settings.pl during installation of new version of Stunnix VBS-Obfus, you'll have to ship all VBScript code of software obfuscated entirely by the new version of VBS-Obfus to your customers once you need to distribute an update to them (instead of just sending the files corresponding to ones that were modified).