Recording SAP BusinessObjects BI 4.1 with 'BI launch pad'?

I am having the following challenge when trying to record SAP BusinessObjects BI 4.1 SP4 (with BI launch pad).

When using HTTP protocol first steps are recorded OK.
However when a report is launched in a browser:
1) New jp2launcher.exe process appears in Task Manager.
   (Is this Oracle Java Web Start launching a Java applet in a browser?)
2) This jp2launcher.exe is doing something useful because it consumes CPU cycles.
3) Nothing is recorded in VuGen after this point until logoff.

Do you have updated recommendations specifically for BusinessObjects BI 4.1 by any chance?

Are recommendations in KM169714, KM185190 and KM11878 still valid and should be followed?

For example, one of the recommendations is "install VuGen preferably in a path without spaces".
My VuGen is currently installed in "C:\Program Files\HP\Virtual User Generator\bin" folder.
Does it mean that I need to reinstall my VuGen?

Currently I use VuGen 12.50 Build 1096 on 64 bit Windows 7 with IE11 browser.

I see "Recording in 32-bit mode: C:\Program Files\Java\jre1.8.0_31\bin\jp2launcher.exe" message in a recording log, but it doesn't look that this recording has captured anything.