Hi,
You don't say it the software is compatible with 8.1, or not.
And you don't say how you installed it.
- Are you installing that Program as the Admin.
Right click on the setup.exe or install.exe > select Run as Administrator.
- If it is not Compatible, follow these steps:
"Make older programs compatible with this version of Windows"
http://windows.microsoft.com/en-us/windows-8/older-programs-compatible-version-windows
- "Get your apps and devices working in Windows 8.1"
http://windows.microsoft.com/en-us/windows-8/get-apps-devices-working
Cheers.