>>Hi,
>>
>>I have a weird one that's been bugging me for a couple days now and I cannot come up with a solution.
>>
>>Client has 6 PCs. 4 running Windows XP , 1 on Windows 7 and one on Windows 8.1.
>>
>>I have installed my VFP app on all and all are able to connect to a SQL Server database on a server except 1 XP PC.
>>
>>I can use the ODBC administrator to create a connection and test the connection successfully, but my application which uses a connection string and code like this:
>>
>>m.lnHandle = SQLSTRINGCONNECT(m.lcConnectionString,.T.) &&& 2nd parameter as .T., as the single-connection-per user, shared by remote views
>>
>>always sets m.lnHandle to a negative number.
>>
>>I have copied the file with the connection string from a working PC.
>>
>>I have created a very simple application which just tries to connect using the connection string and it fails too.
>>
>>Does anyone have any ideas? In over 100 installs similar to this I have never been able to use ODBC admin successfully and not my code.
>
>What is the result from that:
>

>m.lnHandle = SQLSTRINGCONNECT(m.lcConnectionString)
>IF m.lnHandle < 0
>   AERROR(laError)
>   MessageBox(laError[1,2])
>ENDIF
>

Boris,

(it's deja vu all over again!) ;)

I got it!

It turns out they had McAfee running on this PC (which should not have been). I uninstalled it and can now connect, so I guess that must have had the firewall on and was blocking my program.