Microsoft KB Archive/93005

= FIX: /Z Switch Gives &quot;Unknown Option&quot; Error in MASM 6.0b =

Article ID: 93005

Article Last Modified on 10/22/2003

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APPLIES TO


 * Microsoft Macro Assembler 6.0b

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This article was previously published under Q93005



SYMPTOMS
When the MASM compatibility driver provided with version 6.0b of the Microsoft Macro Assembler is called with the /Z command line switch, the following error occurs:

Unknown option: z. Use /help for list of options



RESOLUTION
Omit the /Z switch from the command line. The /Z switch has no effect.



STATUS
Microsoft has confirmed this to be a problem in MASM version 6.0b. This problem was corrected in MASM for MS-DOS version 6.1.



MORE INFORMATION
The ML driver invokes the Microsoft Macro Assembler (MASM) versions 6.x. MASM includes the MASM.EXE compatibility driver for backward compatibility with makefiles written for the MASM driver used in versions 5.x and earlier.

In MASM versions 5.x, the /Z switch displays on the screen the source file lines that contain errors. In MASM versions 6.0 and 6.0a, the /Z option is correctly ignored. However, in version 6.0b, MASM generates an error in response to this option switch and does not assemble the file.

Additional query words: 6.00b buglist6.00b fixlist6.10

Keywords: kbfix KB93005

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