Before purchasing any of the above programs (Hawking Diary & Hawk Migration Tracker), the buyer should verify that his/her computer has the proper Microsoft products installed and is compatible with these software.

Here's a script (Compatibility Test) I wrote to check your computer to see if a version of Excel that is compatible with these programs is installed. Your internet browser may warn you that running this script could potentially harm your computer, just click "Run" on any warning dialog windows that popup.

If you get an error message, it means these programs won't work on your computer.