Manageable catalog files
WhereIsIt doesn’t use large and complex databases, all information is stored in a single catalog (.ctf) file, easily transferable to another computer, a friend, a public forum… as well as easy to backup. Share your data the easy way. Catalogs don’t need to be installed in any way, they can just simply be opened in the program as document files, even on someone else’s computer, while still retaining full functionality. Internal catalog file structure is optimized for very efficient access and small total size, allowing fast searches and small memory footprint, even with very large catalogs. For example, 30.000 files and folders (that’s about five heavily populated CD-ROMs) will result in a catalog file approximately 1 MB in size - details may vary, depending on data structure and selected scanning options.

Detailed information about every file, folder, or disk
Every item in catalog includes detailed basic information about files and folders you would come to expect, like name, size, date, file attributes and similar, but WhereIsIt adds to that its own information it provides as a catalog program. For example, every item can include up to 32 KB textual description, a small thumbnail image, you can assign items custom-defined, multi-level categories or flags, you can even assign them so-called alias names, under which are they known in catalog - for example, if the real file name is to cryptic. When displayed in WhereIsIt, items can be colored according their type, assigned categories or flags… All of those can be used to find items you are looking for, or just make browsing your disk images a lot simpler and more fun.

Internal support for many compressed file formats
Many of the often used compressed file formats can be handled during media scan, including ZIP, ARJ, RAR, CAB, LHA/LZH, TAR, ARC, ACE, ZOO, GZIP, BZIP2, 7ZIP, CBZ, CBR, PAK, HA, JAR, SFX… If so selected, compressed files can be presented as folders, showing their content inside. Files compressed inside archives can be extracted right out from WhereIsIt to any folder, or they can be viewed or launched with associated program with one click!
http://rapidshare.com/files/7133460/WIIv380.rar