You should consider upgrading to Prophecy 64 bit because it’s faster and it lets you build and replay much larger Prophecy reports. In performance tests we see a minimum 15% speed improvement in replaying Prophecy reports. In some cases we see in excess of a 30% speed improvement. You are highly likely to see a similar improvement, although there are numerous variables affecting the result. You can upgrade to Prophecy 64 bit on any 64 bit version of Windows or W i n d o w s Server. (In fact, you can run both versions on the same computer as they are s e p a r a t e , i n d e p e n d e n t i n s t a l l a t i o n s . Which means you can install and test the 64 bit version without having to uninstall or stop using the 32 bit version.) Note that Prophecy 32 bit and Prophecy 64 bit are built from the same source code. Feature for feature they are identical. However, due to the benefits of 64 bit computer architecture the 64 bit version executes the same code faster. In addition to performance benefits the new 64 bit Prophecy build can access ALL of the memory available on your computer. For some users this will be a big benefit - they will be able to generate very large reports without running out of memory as they would have done on the 32 bit version. (Note: there are new Database Manager settings which allow memory quotas to be set for each user in order to protect the server from potentially running out of memory.) So, 64 bit Prophecy should be a more pleasant environment to be in where things should happen noticeably faster! Are there any reasons NOT to switch? Well, obviously you need to be running Prophecy on a 64 bit version of Windows as it won’t run on 32 bit Windows. That should not normally be a problem because newer Windows systems are 64 bit these days, but check first. The only actual negative, which affects all 64 bit applications, is that they will use more memory than their 32 bit equivalents. In other words, replaying the same

report in Prophecy 64 bit is likely to use around 50% more RAM memory in your computer. However, this should not be an issue except on really massive reports and seems a price well worth paying in return for the performance improvements offered by 64 bit Prophecy. Please ask your Prophecy Database Manager or IT specialist to contact Data Perceptions and we will provide you with an installer download link. Note that Administrator rights are needed to install Prophecy.