In PcManFm, when things works well, we can extract easily uncompressed file by selecting "extract here" option from a contextual menu obtained by a right-click on a compressed file. This stopped working here. I'm a bit lost. I didn't find any way/reason for this to happen, maybe some options have changed in unzip or something like that?
or you might have uninstalled a few command line apps that PCManFM uses behind the scenes to do the actual extracting. Check you pacman logs to see if you removed tar, unzip, rar, unrar or p7zip. There might be others depending on file extensions, but these should cover most cases.
There's no such thing as a stupid question, but there sure are a lot of inquisitive idiots !
In fact unzipping is not working too and it unzip is still there. I can unzip manually.
unzip was thgough upgraded in february.
[2012-02-18 15:17] upgraded unzip (6.0-5 -> 6.0-6)
Running "Extract to..." does not have any effects
Do you get any output if you run PCManFM from a terminal and then try extracting?