A. Winnt32.exe has a switch, /checkupgradeonly which will check your system for upgrade compatibility. To use just enter the following in the RUN box (Start - Run)

<CD drive>:\i386\winnt32 /checkupgradeonly

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This will start the Windows 2000 Readiness Analyzer and will list any problem drivers/software. Selecting an item and clicking 'Details' will give more information and the actions you should perform be it uninstalling or installing a newer version. Once you have made a note of all problems click Finish to close the wizard.