Microsoft KB Archive/170134

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RASDIAL Reports Error 623 When Dial-up Entry Name Contains Spaces

Article ID: 170134

Article Last Modified on 10/31/2006


  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 3.51
  • Microsoft Windows NT Server 4.0 Standard Edition

This article was previously published under Q170134


When you are using the Windows NT RASDIAL utility to dial an entry from the remote access service (RAS) phone book (Windows NT 3.51) or dial-up networking (Windows NT 4.0), the following error message will be returned if the entry name contains a space or spaces:

Error 623 - Cannot find the phone book entry


RASDIAL reads the name entered at the RASDIAL command until it finds a space. For example, if you have an entry in your RAS phone book called MY ISP and you attempt to dial it using RASDIAL by entering the following command: RASDIAL MY ISP, you get the error 623. This is because RASDIAL tries to dial an entry in your RAS phone book called MY.


Put quotation marks around the dial-up entry name; for example:


Keywords: kberrmsg kbnetwork KB170134