Winsock Error Codes - Brought to you by Winsock-Error.com

87 "One or more parameters are invalid."

WSA_INVALID_PARAMETER (Winsock error number: 87)

Microsoft say this about Winsock error 87 - WSA_INVALID_PARAMETER:

An application used a Windows Sockets function which directly maps to a Windows function. The Windows function is indicating a problem with one or more parameters. Note that this error is returned by the operating system, so the error number may change in future releases of Windows.

Full details of Winsock TCP error 87 - WSA_INVALID_PARAMETER:

No further winsock error code information is available beyond the default message of....

One or more parameters are invalid.
   
This page is designed to help you to understand Winsock TCP error 87. It will not necessarily mean you can instantly fix issues when your computer tells you that Winsock is having problems with code 87, rather it will give you the necessary background information to help solve the matter.

Programming declarations for 87 (WSA_INVALID_PARAMETER):

C#
long WSA_INVALID_PARAMETER = 87 ;

VB.net
Dim WSA_INVALID_PARAMETER As Long = 87

VB6
Dim WSA_INVALID_PARAMETER As Long
WSA_INVALID_PARAMETER = 87