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  • Microsoft Sync Framework Runtime Native v1.0 (x86)
  • Microsoft User-Mode Driver Framework Feature Pack 1.0
  • Microsoft Visual C++ 2005
  • Microsoft XNA Framework Redistributable 2.0

There are other parts included with these but they are all related. I don't use any of them.

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up vote 2 down vote accepted

They are all frameworks, so in theory you don't need them but software that requires a certain framework will not run without it installed. Generally, unless you have a real pressing need to remove them they are unlikely to do any harm nor damage performance and I would recommend keeping them.

@firedfly has already mentioned the Visual C++ Redistributable (and yes, I agree that you really should really keep this one).

The User-Mode Driver Framework is also pretty important, as it allows some drivers to run in "user mode" (by providing an API for the kernal instead of the driver having direct access), which helps protect the system if they fail. I'm not sure if these drivers require the framework, but I would guess they do.

The XNA Framework is used in the construction of some games (XNA being a game development studio / toolset), so without the redistributable you will be unable to run games that requires this.

Similarly, the Sync Framework Runtime works on the same priciples, but again for a different set of software.

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Alright thanks. – Chronic Aug 31 '10 at 15:13

A lot of applications depend on Microsoft Visual C++ 2005 Redistributable. I would not recommend removing it. If you do, applications may stop functioning. I'm not sure about the others.

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Thanks! I almost removed them. – Chronic Aug 31 '10 at 15:14

Except for the User-mode driver framework, none of those programmers are necessary or have any value by themselves. However, all of them are likely necessary for the correct operation of at least one other non-Microsoft program on your system. It is possible that you have installed such an application and since removed it, such that they are no longer necessary, but it's not a good idea to remove them.

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OK I'll keep them then. – Chronic Aug 31 '10 at 15:13

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