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Log on as Administrator
Click Start, and then click Run (or press Winkey+R)
Type `Regedit` and click OK (or press Enter)
Double click HKEY_LOCAL_MACHINE
Double click SOFTWAREDouble click Microsoft
Double click Command ProcessorIn the right pane of Regedit, double click the 'CompletionChar' DWORD value
Type 9 click OK (9 is the ASCII number of the Tab character)
Close RegeditRun command prompt and enjoy.
Posted in: MS DOS