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install util issue

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Dear Colleagues,

I have one issue and hope that somebody maybe can help me.

Namely I want to install one service via installutil and got some error messages.

What I did is next :

1) Started Command Prompt as Administrator

2) Move to folder where my exe files and dll files are (via CD command)

3) Executed next command : C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil TestService.exe /name=TestService_01 /display=TestService_01

Instead to get my service installed I get next error message :
Exception occurred while initializing the installation:
System.BadImageFormatException: Could not load file or assembly 'file:///C:\InstallFolder\bin\TestService.exe' or one of its dependencies. An attempt was made to load a program with
an incorrect format..

Can somebody maybe help with this.Why I get this Bad Format exception.
- Edited by stomar_3 Thursday, April 3, 2014 9:09 AM wrong error message
Thursday, April 3, 2014 8:50 AM

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You will get the above error if you for example trying to install a windows service that targets .NET 4 from the .NET 3.5 version of installutil.exe.

Make sure that you are using the right version of installutil.exe. For .NET 4 it is located in C:\Windows\Microsoft.NET\Framework64\v4.0.30319\installutil.exe. Also make sure that you are using the 32-bit version of installutil.exe for 32-bit services and the 64-bit installutil.exe for 64-bit services.

Please refer to the following link for more information: http://stackoverflow.com/questions/323140/system-badimageformatexceptioncould-not-load-file-or-assembly-incorrect-for

How to: Host a WCF Service in a Managed Windows Service: http://msdn.microsoft.com/en-us/library/ms733069(v=vs.110).aspx
- Marked as answer by Samson Sun - MSFT Friday, April 11, 2014 6:25 AM
Thursday, April 3, 2014 1:21 PM