Hi Robby,
In addition to the setting in VS.NET IDE Gary has mentioned. You can also
manually set the runtime version which used by your application in the your
application's config file. You can use the <supportedRuntime> element to
target a runtime version. For example:
<configuration>
<startup>
<requiredRuntime version="v1.0.3705" />
</startup>
<runtime>
.....
</configuration>
For detailed info, you can refer to the following reference in MSDN:
#Targeting a .NET Framework Version
http://msdn.microsoft.com/library/en-us/cpguide/html/cpconTargetingNETFramew
orkVersion.asp?frame=true
Hope this also help.
Regards,
Steven Cheng
Microsoft Online Support
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