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Editorial Team
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Asked: 2026-06-09T13:37:01+00:00

Need help building a VBScript regex that checks for a valid computer name and

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Need help building a VBScript regex that checks for a valid computer name and returns only invalid characters. String can contain numbers, upper and lower case letters, and (-) sign only. It can’t start or end with (-) and cannot be only numbers.

Valid (Returns no match):

computer
Computer8
8Computer
Com8puter
Com-Puter
Computer-123

Invalid (Returns a match to invalid characters):

123
-computer
computer-
com*puter
PC&123

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1 Answer

  1. Editorial Team

    I ended up switching the valid and invalid returns. I also ended up using two different RegEx strings. The first is:

     ^[0-9a-zA-Z]{1,}[-]*[0-9a-zA-Z]{1,}$

    This doesn’t allow the (-) at the beginning or end and requires all numbers, letters, or (-). It also requires a string of at least two characters.

    The second is:

    "[a-zA-Z]"

    This makes sure there is at least one letter included.

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