Ok I finally got to the bottom of my issue with running Hex on Steroids on my main windows profile.
I was getting a critical error: System.FormatException: Input string was not in a correct format.
I knew I had my Net Framework installed correctly and I was able to get the program working on a new windows profile. A work around but it was bugging me.
Here's what resolved the issue for me:
I looked at the HKEY_CURRENT_USER registry which contains configuration information for various system settings and software that are specific to each user.
I noticed that the values were different for each user. In the non-working profile I had values which contained decimals (float values) whereas in the working profile, all values where whole numbers (int values). This is all still a bit over my head but I imagine this might account for the "Input string not in a correct format" error. Being that it was probably looking for int values and was getting float values. Maybe someone can chime in to confirm or correct my theory.
Anyways here's a screen shot of the values that got the program working for me.
For those who don't know how to access the Windows Registry Editor
Start-->Run --> Type in "Regedit" -->
in the Registry tree click HKEY_CURRENT_USER -->Software --> Lefteris Aslanoglou --> Hex on Steroids