It is possible to use the built-in UIM JRE so that you don't have to install a separate Java instance. To do this, you should locate the UIM JRE folder and add this to the system path as well as adding a JAVA_HOME environment variable.
Normally the path is C:\Program Files (x86)\Nimsoft\jre\jre<version>\bin\.
In the machine where you are running Infrastructure Manager open System Properties (Control Panel > System and Security > System > Advanced System Settings and choose 'Environment Variables.'
If not already present, add a System Variable:
Then add or edit its Variable value (example):
C:\Program Files (x86)\Nimsoft\jre\jre8u102\bin\
You will also need to add the full path of Java JRE to PATH System variable. Just edit the PATH variable and append at the end of the string the path to JRE (example):
;C:\Program Files (x86)\Nimsoft\jre\jre8u102\bin\
Close and reopen Infrastructure Manager and then restart the probe (cmdbgtw). Now you should be able to open the cmdbgtw probe GUI.