I installed ProM 6.6 and had a bit of trouble since i have to go through a proxy. Adding "-Djava.net.useSystemProxies=true" into the BATs and INIs fixed that, but now the EXEs stop with "An error occured while starting the appplication" and the BATs always stop at ">>> Loading packages from http://www.promtools.org/prom6/packages66/AlphaMiner/packages.xml" (I set VERBOSE = ALL in the ProM.INI).
Any help ideas or help would be appreciated.
Edit: Oh and I tried clearing the plugin cache and deleting the registry entry "Computer\HKEY_CURRENT_USER\Software\JavaSoft\Prefs\org\processmining\framework\plugin\impl"
OK issue is resolved and can be closed.
I simply let the hanging bat run in the background and after aproximately 35-40 minutes the Package Manager GUI came up and started installing.
Thanks for reporting the solution mwy. Happy mining!