I ran into a problem with the install kit when installing Aspose.Slides (it said there were no instances of Reporting Services installed, when it was installed on the server and integrated with Sharepoint).
However, in the instructions contain invalid XML in step 4 for the RSSrvPolicy.config file settings. It is missing the closing tag (and perhaps some data?).
Fortunately I had successfully installed aspose.slides on another machine, so I compared the config files and copied over the missing text. But you need to update the Installation instructions and fix the problem for future people installing the product manually.