This is a common issue when using filenames with non-ascii characters, zip isn't encoding aware so you get a mess when you compress something with one encoding and decompress with another.
If you have a zip file with a "bad" encoding, you can change the encoding in winrar in the menus before decompressing (assuming you know what enconding was used to compress the files).
If you're the one compressing the files, make sure you compress with utf-8 encoding, which all modern tools should support, I think winrar does this by default.
If you have a zip file with a "bad" encoding, you can change the encoding in winrar in the menus before decompressing (assuming you know what enconding was used to compress the files).
If you're the one compressing the files, make sure you compress with utf-8 encoding, which all modern tools should support, I think winrar does this by default.