Symbol Dynamics® EXP®
The Scientific Word Processor
|Celebrating 35 years: 1986 to 2021|
Shipments of EXP 6.0 prior to July 13, 2009 do not install on 64-bit editions of Microsoft Windows. The EXP 6.0 setup program displays the following message: "This Windows system is missing some critical information required to install EXP." Symbol Dynamics has developed a tiny program called Prep64.exe that fixes the problem.
You should never need the program Prep64.exe again, even if you uninstall and reinstall EXP 6.0 on the same computer. The fix is permanent for the current installation of Windows.