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Category Name > MultiTAS
Blank preview screen running MultiTAS reports

UPDATE: should be fixed as of MultiTAS v4.3 (released December 2016)


Scenario:
On running any report in MultiTAS on a Windows 7, Windows 8 or Windows 10 computer, you receive this message:

Unable to get the window handle for the ‘AxCrystalActiveXReportViewer’ control. Windowless ActiveX controls are not supported.

Resolution
This is caused by DEP (data execution prevention). To disable DEP please do the following:

1. Into the Windows 7 start menu box type in ‘cmd’
2. Command Prompt will appear in the list of programs – right click on it and choose ‘Run As Administrator’. A command prompt window should open.
3. Into the command prompt window please type the following command then press Enter:

bcdedit.exe /set {current} nx AlwaysOff

4. Close the Command Prompt window and restart the computer

If you run this command, reboot and you are not able to start Windows, then run Windows in safemode and enable it again, using this command:

bcdedit.exe /set {current} nx AlwaysOn

You can start Windows in safemode by pressing F8 during bootup

Note
A crash is one of the indicators of this issue. You may receive any of these errors instead:

  • MultiTAS crashes
  • A Blank Preview screen
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