It's a while since I used PowerCalc but I think it's a good replacement for calc.exe for WinXP http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoy

It's a while since I used PowerCalc but I think it's a good replacement for calc.exe for WinXP http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx http://www.microsoft.com/windowsxp/downloads/powertoys/xppow... some other nice tools there too.