what about "file checking forbidden by required/disallowed string rule" ?

when i try to file some multimedia file ( for example wmv ) i type the word "wmv" in "must include" box , but the result is a warning :"file checking forbidden by required/disallowed string rule" . what must i do now ?

In which concerns image's indexing you can find a few advices along this forum.

In which concerns the specific message that you got, just put in a search engine and read a few answers.

Th~is area of the forum is for contributions (mods, etc).

Be welcome.