If you are getting this message…
You will need to turn off data execution protection on your machine.
Right click on Computer, and choose Properties

Click on Advanced System Settings, and then under Advanced, click Settings

Select the “Data Execution Protection” tab, and then click “Turn on DEP for essential Windows programs and services only”

Restart your computer and you should now be able to run TurboCAD.

MY DEP was set this way form th estart and still crashes with file open and try to seelct soemthing from the oeptions menu.
Any other options to look?
You may also try right clicking the TurboCAD icon and selecting run as administrator. You may also try disabling user account control, it has been known to cause some issues with some programs.
My Vista system was set that way from the start, but in TurboCad Build 16.2 and User Account Control is turned off, I still get crashes every time I try to copy between layers, trace walls from other layers and draw simple or curved walls. Any help would be great.
Further informatin on the issue is as follows:
Problem signature:
Problem Event Name: APPCRASH
Application Name: Tcw16.exe
Application Version: 16.0.34.4
Application Timestamp: 49cb7366
Fault Module Name: AecGeometry_tc16.dll
Fault Module Version: 2.6.1.0
Fault Module Timestamp: 493273b5
Exception Code: c0000005
Exception Offset: 0002c0b0
OS Version: 6.0.6002.2.2.0.768.3
Locale ID: 1033
Additional Information 1: 5b3c
Additional Information 2: f6e9015d67cab81e1f93a4b0c5dc0da3
Additional Information 3: 1634
Additional Information 4: 7b336a3f1b393db2731cc3c443dad2b1