|Well, the .cct has something to do with adobe flash(i think)|
.pub is for Microsoft Office Publisher, I'm pretty sure. .
RPT file is a kind of Generic Report which generated from various text-based projects like system utilities or organizer programs. Any text editor can open RPT files either on Windows or on Mac OS.
And .ger is a german text/html type file.
The HDR file extension is a typical image file that can be created with some software programs like Photomatix and Adobe Photoshop; here HDR stands for high dynamic range.
.inx has something to do with adobe indesign
The BIN file type is primarily associated with 'Binary File'. Binary files are used for a wide variety of content and can be associated with a great many different programs. In general, a .BIN file will look like garbage when viewed in a file editor and unless there is some clue in the ASCII portion of the file (if any) there is little one can do to determine which program a particular .BIN file goes with.
Also I had windows vista basic on 1gb ram and 80gb hard drive a while back, and it filled up in no-time. Try downloading Ccleaner, and run a scan, or better yet, install
Hope this helped.