The package manager has menu entries "task->update manager" and "edit-> select updatable packages". Both are not working for me. The second entry in grayed out and when I click on "update manager" I get an error "The update helper could not be found".
I have this problem on two installation (win xp and win7). In both cases miktex 2.9 has been installed in single user mode in a restricted account and in both case the main tree is NOT in s standard location (like C:/Program files). I tried to add miktex/bin/internal to my path variable but this didn't help.
If necessery I can make a trace
The update manager itself works fine if I start it e.g. throught the start menu.