Thats not quite right. If I remember correctly, to make something executable, but not viewable, you would want the permissions as

-rwxr-x--x
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That would set the Read/Write/Execute bits on the file for the Owner, the Read/Execute bits for Group (but not Write) and Execute (no Read or Write) for World (i.e. everyone else). But, those are Unix-style permissions, not Windows. You might see the following

-rwxrwxrwx
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permissions if you are looking at the file on a Windows machine with FTP (depending on how permissions are set for files on the Windows machine).