FSXA .NET Framework 2.0

I have a Win7 64 bit system.
I have some apps that call for .NET frameworks.
Over time, some have called for 2.0, 3.5, etc. etc.
On Microsofts' website there are many versions of 1.1 2.0, 3.5,4.0....etc.
Some have Service Packs,SP1, SP2, etc.
Some have Security patches.
Some are "Compact" Frameworks.
Some are specific to a Windows version.
Some are 32 bit, some are 64-bit ???????
I am hoping that simply using the latest Framework x.0, with (a) the latest
Service Pack, and (b) both the 32-bit and 64 bit will remove the need for any earlier versions.
All I have is
version 4 Extended 4.0.30319 51.9 Mb and
version 4 Client Profile 4.0.30319 38.8 Mb

Is this realistic? Library Creator is the app I want to use again.


Staff member
FSDevConf team
Resource contributor
NET frameworks are not cumulative. You can't install 4.5 and have applications targetted against earlier version run.

If an application is targetted (compiled to use) version 2.0 then you will need that installed for the application to work. In general most folks will have all versions of NET on the computer and removing any (I am not sure if that is what you had in mind) would stop applications using them work. If Library Creator was made to use NET 2.0 then that is what you need on your computer otherwise it won't work. OK I have to say that in some cases applications can appear to work with a version of NET earlier than they were made for but this is just a technicality and should not be relied on at all.

I am not sure at all if I have answered the question:eek:
Many thanks

Thank you. I understand clearly and will re-install the appropriate ones. My system knowledge can best be described as feeble.


Staff member
FSDevConf team
Resource contributor
You are welcome. It has never been clear to my why updates to the NET framework are not cumulative. I even asked the folks who develop it at a conference last year and did not understand the reply :eek:
Some clarification from Microsoft on .net Framework 2.0

The Microsoft Community gave me this answer.....because my x64 and x86downloads would not install.

'"WINDOWS 7 Home" already has version 2.0 to 4.0 already embedded in the OS.


Resource contributor
This also goes for Windows 8,... its comes with the version 4.5,... Also .NET 3.5 SP1 is available as a Windows feature in Windows 8. That means that all you have to do is go to Add and Remove Features and just select the .NET 3.5 SP1 feature and you will have .NET 2, .NET 3.0 and .NET 3.5 on your machine.

So in short, without downloading any installers, you have following .NET versions on a Windows 8 machine:
NET 4.5
NET 4.0
NET 3.5 (Need to enable feature)
NET 3.0 (Need to enable feature)
NET 2.0 (Need to enable feature)