viewer.jnlp downloaded from DELL iDRAC 8 admin console does not launch iDRAC Java virtual console application. The PC has 64bit Java SE Development Kit v17.0.1 installed.


When the file is opened with C:\Program Files\Java\jdk-17.0.1\bin\java.exe, the command prompt opens and then immediately closes. The actual error is:
Error: Could not find or load main class
Caused by: java.lang.ClassNotFoundException

When the file is opened with C:\Program Files\Java\jdk-17.0.1\bin\javaw.exe, nothing at all happens.


The issue was resolved by installing 32bit version of Jave SE Runtime Environment (from: and then associating the.jnlp file extension with C:\Program Files (x86)\Java\jre1.8.0_331\bin\javaws.exe.

You may also need to add the server's IP to Java Control Panel Exception Site List.

Java Dell iDRAC Application

April 2022
PowerEdge R230 Server with iDRAC v8
Windows 11 Pro client



One comment

  • Hi, i'm running IDRAC 6 (Dell R610), i did install 32 bit of java, but every time it download instead of open the console, so i have to go to download folder and open using java web start, is there any work around? im on windows 10 22h2


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