Launching the Denodo Standalone Applications in High DPI Displays¶

When using a monitor with a high DPI display, Windows will display the Denodo Control Center, the Virtual DataPort administration tool and the ITPilot Wrapper Generation Tool with a very tiny font. To avoid this problem, follow these steps:

1. In the host where you are having this problem, open the file explorer and go to the folder <DENODO_HOME>/jre/bin.

2. In this folder, right-click “javaw.exe” and click Properties.

3. Click the tab Compatibility.

4. Select Override high DPI scaling behavior and in Scaling performed by, select System.

5. Repeat steps 2 to 4, for the file “java.exe”.

This should fix the problem.

If the previous steps did not work, try the following:

• Modify the Windows Registry to tell Windows to look for an external manifest file.

• Create external manifest files.

You only have to do this when running these tools on Windows.

To do this, follow these steps:

1. Press Windows logo+ R, enter regedit and click OK.

2. Navigate to the following registry key:

   HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows > CurrentVersion
   > SideBySide
   

3. After selecting the entry SideBySide on the tree of keys, right-click on the right side of the window and click New > DWORD (32 bit) Value.

4. Type PreferExternalManifest and press Enter.

5. Right-click PreferExternalManifest and click Modify.

6. In the Value Data box, enter 1, select Decimal and click Ok.

7. In the rare case that you are launching the Virtual DataPort administration tool or the ITPilot Wrapper Generation Tool with a 32-bit Java Virtual Machine (JVM) on a 64-bit Windows, continue to the next step.

   Otherwise, go to step 12. If you are not sure if you are in this scenario, go to step 12 because using a 32-bit JVM on a 64-bit Windows is a rare configuration.

8. Navigate to the following registry key:

   HKEY_LOCAL_MACHINE > SOFTWARE > WOW6432Node > Microsoft > Windows
   > CurrentVersion
   

9. Right-click CurrentVersion and click New > Key. The name of the new key is SideBySide.

10. After selecting the new entry SideBySide on the tree of keys, on the right side of the window right-click and select New > DWORD (32 bit) Value.

11. In the Value Data box, enter 1, select Decimal and click Ok.

12. Close the Registry Editor.

13. Download the Windows tool “Sigcheck” and unzip it in the directory <DENODO_HOME>\jre\bin.

14. Open a command line and execute the following:

    cd <DENODO_HOME>\jre\bin
    sigcheck -m java.exe
    

15. The output of this file looks like:

          Verified:       Signed
          Signing date:   11:37 AM 9/14/2017
          Publisher:      Oracle America, Inc.
          Company:        Oracle Corporation
          Description:    Java(TM) Platform SE binary
          Product:        Java(TM) Platform SE 8
          Prod version:   8.0.1520.16
          File version:   8.0.1520.16
          MachineType:    64-bit
          Manifest:
    
    <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
    ...
    ...
    ...
    

Copy the output starting from <assembly xmlns="urn:schemas-microsoft-com:asm.v1" (right below Manifest:) until the end of the output.

Paste this in a new file and save it as <DENODO_HOME>\jre\bin\java.exe.manifest. This file has to start with <assembly xmlns="urn:schemas-microsoft-com:asm.v1".

16.Edit this file and replace

<dpiAware>true</dpiAware>

with

<dpiAware>false</dpiAware>

17. Save this file and copy it to the same directory with the name javaw.exe.manifest. I.e. in the directory <DENODO_HOME>\jre\bin you should have the files java.exe.manifest and javaw.exe.manifest; both with the same content.

After this, the next time you start the Denodo Control Center, Virtual DataPort administration tool or the ITPilot Wrapper Generator Tool they will be scaled properly.