Well i know hal = Hardware Access Layer
it's hardware abstraction layer

I know it has to do with your hardware architecture. The only dealings I have ever had with the HAL in in Windows 2000 Server, when using Sysprep. In order for the images to work, you need the same HAL and mass storage devices.

and the HAL is configured based on wether you are using an Intel or AMD Processor. SO chances are if you can find the DLL make sure you have identical or nearly identical hardware as the person you are getting it from.

About the CD thing...I dont have much experience with XP but with 2k all ya have to do is browse the .CAB files on the CD until you find the DLL file.

but...there is a possibility of a virus. you deleting alot of stuff may have done it..but um i dont think uninstalling programs will delete your hal.dll

well hope this helps...thought it prob wont