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i have an app in which i can open MyConnection Designtime fine.
when i try to open it runtime, i get an error 10061 and then Lost
Connection to MySQL Server During Connection. Interestingly, i
have another app which works fine and the connection has the
same settings (check the dfm file). The settings are:
object MySQLConnection: TMyConnection
Database = 'afpconf'
Username = 'TheUser'
Password = 'happy'
Server = '192.168.1.2'
LoginPrompt = False
Left = 600
Top = 432
end

and

object MySQLConnection: TMyConnection
Database = 'afpconf'
Username = 'TheUser'
Password = 'happy'
Server = '192.168.1.2'
LoginPrompt = False
Left = 169
Top = 13
end

if i leave it connected in design time and then
run it, i get the same error which, this time seems
to occur before the datamodulecreate event.

the working app does not have the mysqlconnection
in a datamodule whereas the problem app does.

I am running MySQL 4.1. I have BDS2006E with
update 2 and hotfix 1, 3, 5. i have MyDAC 4.40.0.18
and SDAC 3.80 (which is not used in these apps).

This application ran a year ago under D2005E (if that
helps). In fact, it just ran correctly on a different computer
which has D2005E on it and MyDAC 4.00.16

Both computers have the same LibMySQL.DLL and LibMySQL_C.DLL
files on them.

Please simplify the application that fails on connect to maximum possible extent and send it to us (evgeniyD*crlab*com) for analysis.

I am sending you a stripped down app which exhibits the same behavior. However, in creating this, i noticed that the exe created by D2006 ran on the other workstation. after some messing around, i then discoveredt that the exe would run as a standalone on the D2006 workstation (it does NOT run under the IDE on the d2006 workstation). hope you can figure this out. thanks.

We have reproduced described problem using the sample you have sent. The problem was solved by changing line to in afpconf.bdsproj file. "D:\WINDOWS" is the system root directory on our test computer.
Probably the .bdsproj file is misconfigured.