One way to is to stop spyware from installing itself by using the 'kill bit' which blocks specific ActiveX controls. It marks that control as incompatible or not runnable.
Version 6 of Adobe loads much slower than version 5. The speed problem was fixed with 7. But if you need version 6 you need to pull a couple tricks on Adobe6.
By having the network do things itself that the local computer usually does, the CPU processes needed to maintain a network connection are lowered. This does not work on all cards, and it can cause network connectivity problems on systems where the service is enabled but unsupported, so please check with your NIC manufacturer prior to enabling this tweak.
Windows XP stores a "thumbnail" of graphic images or the first frame of the video and makes it into an oversized icon for the file. Those files can either be created each time you access the folder, or they can be cached. The thumbnail caches on systems with a large number of image and video files can slow the process down significantly.
The 32 bit version of Windows XP will usually only open one 16-bit process and put all 16-bit apps running on the system into that process. This is necessary for some older applications that run together and share resources.
But most 16-bit applications work better when they have their own dedicated resources. With the following registry change, the process is put in a "Win16 VDM" (16 bit Virtual DOS Machine) which doesn't allow any interaction with other processes. This is also called a WOW (Windows On Windows) process.
Many think XP will keep dynamic link libraries (DLL) that are no longer being used. This wastes memory space, and tends to cause stability problems in some systems.
A hardware optimization program that improves the machine by altering the chipset and the CPU.
Bootvis is a tool to optimize the XP boot time and to get an idea of which programs you want to remove with MSCONFIG.
A swap space is where XP stores data that is too big for it's internal memory (RAM) so it can get-to recently accessed information quickly. Everybody seems to have a different take on what the specs should be. Trying to balance the two is the question.