Compression
Zip and unzip components, along with other forms of compression and decompression.
	Using Files
File IO is a very important part of programming. Although many applications are relying more on database access than files, knowing how to manipulate files will improve your programming abilities and flexibility.
	AndreaVB
An excellent site with lots of information. The content ranges from low level programming using the Windows API, to ASP and COM components. You might get a bit lost in the design, but focusing on the center white section of the page will help a lot.
	Finding the short filename from a long filename
If you're working in the 32-bit world, your user will sometimes give you a long filename to work with. If you really want to see the short filename, not the long one, you can use the GetShortPathName function:
	How to recognize drive types
If you're using VB4 32 bit, you can use the GetLogicalDrives API to get a 32-bit bitmask of all valid drive letters. FOr example, bit 0 is drive A. If it's a 1, then there is drive A in the system. Then use GetDriveType(""A:"") and check the return. if the drive is a CD-ROM, you will get a return of DRIVE_CDROM.
	VB Web
An excellent site. The VB Web contains numerous tutorials on all flavours of Visual Basic development, with a vast source collection and well structured content.
	Wotsit's File Format list