<p>Our clients use a vb6 version of our software.</p>

<p>We are upgrading them to a .NET application written in C#...</p>

<p>Is there less bulk using .net 2.0 than .net 3.5?</p>

<p>My definition of less bulk would be: Smaller size, smaller installation time, etc.</p>

<p>Most of them probably already have 2.0 anyway.</p>

<p>I only ask because I would like to take advantage of LINQ in 3.5.</p>

If you would like to take advantage of LINQ, then go for 3.5! I find there's not more 'bulk' when using it myself, but unless you want to use LINQ, then either is fine.