It turns out that its a java app and there seems to be no JVM on the phone.
After some googling and surfing I found these instructions for installing a JVM, the Java MIDP emulator on the phone (from mxit.defza.com):
- Go to handheld.softpedia.com.
- In the search box type IBM MIDP and search (GO).
- In the results page click the “IBM MIDP 2.0 Java Emulator” (Link) item.
- Proceed to download. (It’s free; +-2.5MB size) You can choose any location when they ask you for the “download location”.
- Install it etc.
Unfortunately the emulator is not well integrated in windows mobile and it is unable to detect my web proxy settings, so it works only on a direct internet connection and not on my office's private APN.