Hi Friends. Please help me out. Postgres connection for C# 2.0 not working in windows 8 64 bit !!!!

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Dear Friends,

I have got the error message

ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

I am using VS 2005 and ADO.net programming.

I am running windows 8 64 bit.

I have installed 64 bit dotnet framework, Crystal reports setup for V2.0, Postgres 8.2, postgres odbc connector setup (Downloaded from postgres website), Created a DSN in Control panel -> Administrative tools -> ODBC 32 bit -> System DSN -> Postgres ANSI.

But still my APP is not working

Please help me out.

This app works fine in Windows xp, Vista, 7. But not working in windows 8.

Posted 15-Jan-15 16:39pm

Member 11376476

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Dave Kreskowiak · Accepted Answer · 2015-01-15T17:43:00

Probably because your app is compiled to target "Any CPU". So, on a 64-bit machine, your code runs as 64-bit and on a 32-bit machine, your code runs as 32-bit.

The problem is that you cannot combine 32- and 64-bit code in the same process. Your 64-bit app cannot use a 32-bit Postgres driver. So, you have two choices.

1) Find a 64-bit Postgres driver and install it.

2) Go into your project Properties, Build tab, and change the target from Any CPU to x86. That'll force your code to run as 32-bit only on 64-bit machines.