Q43074: Cannot Use Standard Device Names as Filenames
Article: Q43074 Product(s): See article Version(s): 1.00 | 1.00 Operating System(s): MS-DOS | OS/2 Keyword(s): ENDUSER | | mspl13_basic Last Modified: 17-MAY-1989 You cannot use the standard device names (COMx, LPTx, and CON) as the base filename in the Microsoft Editor. For example, the command "M COM1.C" under DOS will attempt to open the communications port for editing and will hang the computer. This information has been tested for the following devices: COM1, COM2, LPT1, LPT2, CON. The different devices give slightly different results. COM1 and COM2 will hang the computer immediately, but the others will give errors or hang when the file is saved. The protect-mode editor behaves in the same fashion.
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