IamBen,
Turbo pascal is incompatible with Windows 7. In other words it does not work on windows 7.
Is your processor x64 or x32 based? If you dont know then right click on my computer, if it says x64 version of windows then it is x64, if it says nothing or says x86 then it is x32 based.
There are many other pascal compilers on the internet,
http://www.freepascal.org/
List of pascal compilers
Choose the x64 or x32 version as per your hardware.
Hope this helps,
h8dkngrg8