Maybe I've found a solution: using a HP diagnostic software I discovered that the errors were generated by FotoTaggerToolbar.dll, so I uninstalled the Foto Tagger software (that was never running while these errors occurred !) and now everything seems to work correctly.
Thank you for your help.
Link to this software? I have a problem where a great number of programs from many publishers, x64 capable or not, will just crash if I browse certain file paths or folders or hdd's... no matter the program. The more freeware-ish it is, the more likely it will crash before I can get anywhere...
I am running Windows 7 Ultimate 64 Bit