Introduction

The current Outpost installation program is not digitally signed.  When you run it, Windows will produce the following error message:

Digitally signing ensures the end user that the program or code they are downloading has not been tampered with or altered.  Digital signing is based on Microsoft Authenticode® technology, and enables users and the operating system to verify that program code comes from the rightful owner.

While this is a great idea, Digital signing is not free and can cost a couple of hundred dollars a year for the service. 

Where WinMD5 comes in

WinMD5.exe is a freeware program for Windows that implements the MD5 algorithm.  This program produces a 16 byte ''fingerprint'' of whatever it is aimed at that can then be used to confirm that the file posted up on a website is the file you expect.  This is the approach I am taking here.

Your use of WinMD5.exe is strictly optional.  There is no requirement to confirm the integrity of the installation program file.  However, if you are concerned, I recommend you follow the following steps: