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We are currently using .net framework 3.5 and we want to install 4.0 and 4.5 on Windows 2008 server. What I don't under is, is it going to replace .net framework 3.5 or both can co exist?
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We are currently using .net framework 3.5 and we want to install 4.0 and 4.5 on Windows 2008 server. What I don't under is, is it going to replace .net framework 3.5 or both can co exist?

.net framework 3.5 &amp; up

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.

.net framework 3.5 &amp; up

.net framework 3.5 & up