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How to resolve a failed installation/uninstallation of the signing application D.Suite

Installing or uninstalling applications can be terminated with an error message in some cases due to old versions of applications remaining on the computer after being incorrectly uninstalled or manually deleted.

Solution:

  • check the list of installed programs (Programs and components), what components from the publisher "DITEC, a.s." are contained within it 
     
Komponenty od vydavateľa DITEC, a.s.
  • check which directories are in the path: C:\Program Files (x86)\Ditec
Adresáre na C: od vydavateľa DITEC, a.s.

The most common issue is that only the D.Launcher (x86) component is found in Programs and Features, however the DLauncher directory or the entire Ditec directory is missing in the path C:\Program Files (x86)\Ditec.

In this case, neither the installation nor the uninstallation of the new version of the D.Suite package is possible. The DLauncher directory must be manually copied to the Ditec directory so that the uninstallation of the old version can proceed correctly.

Depending on the type of missing directory, we provide the following download links; the files need to be extracted into the C:\Program Files (x86)\Ditec directory.

DLauncher

5/20/2026
Download in format zip (20MB)

DViewer

5/20/2026
Download in format zip (1MB)

If the problem persists despite this, launch the Java application at the following link: https://www.ditec.sk/static/kep/apps/DSuitePreCleaner.exeOpens in a new window

If the problem persists, please send us a screenshot (or photo) of the error, as well as screenshots from "Programs and Features" and the `C:\Program Files (x86)\Ditec` directory, via the contact formOpens in a new window.

Revised:
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