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When I open Manager using the Windows Programs menu bar or the Manager URL (http://localhost/manager), it asks me to download and install the Java Runtime Environment (JRE). In some situations, the following error appears:
load: class com/esri/aims/admincore/applet/AdminSiteApplet not found
ArcIMS Manager, and the Java Viewers, require a system registered Java 2 Platform Standard Edition Java Runtime Environment (J2SE JRE). In this case, you probably have more than one version of JRE on your machine, and the version of JRE referenced in the registry is incorrect and does not contain the required ArcIMS JAR files.
Do the following to reference the correct version of JRE:
JRE versions 1.3.1_03, 1.3.1_04, 1.4.0_01,and 1.4.0_03 are not supported with any version of ArcIMS.
The necessary files are: arcims_admin.jar, arcims_admincore.jar, arcims_aej.jar, arcims_author.jar, arcims_designer.jar, arcims_resadmin.jar, arcims_resaej.jar, arcims_resauthor.jar, arcims_resdesigner.jar, arcims_resssdk.jar, arcims_sdk.jar, jai_codec.jar, jai_core.jar, jaxp.jar, jcert.jar, jnet.jar, jsde**_sdk.jar, jsde**_sdkres.jar, jsse.jar, mlibwrapper.jar and parser.jar.
If this doesn't resolve the problem, reinstall ArcIMS Manager.