title: How to call Forms in multi projects, single solution environment (VS2012)?
body: <p>This is partially related to this thread <a href="https://stackoverflow.com/questions/10224386/combining-two-projects-and-get-a-single-sln-file/30082251#comment13176143_10224549">Combining two projects and get a single .sln file</a>.</p>
  <p>What are the correct syntax to call the forms on these projects. For example, if Solution1 contains Project1 and Project2, ...and... Project1 has Form1.vb &amp; Project2 has Form1.vb. So what is the syntax to call Form1.vb in Project2 from Form1.vb in Project1 (assuming there is a button to click and open a form on click event).</p>
  <p>Just a note however, I've added Project1 &amp; Project2 to Solution1 as well as added a reference to My Project.Resources.Designer.vb.dll.</p>
  <p>But when I tried to call Form1.vb in Project2 from Project1, I got syntax error - Project2.Form1 is not defined.</p>
  <p>Can someone point me in the right direction?</p>
  <p>Any help is greatly appreciated. Thanks in advance.
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  <p>Project1 is bold hence the startup project.</p>
  <p><img src="https://i.stack.imgur.com/KqGIj.png" alt="enter image description here" /></p>
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  <p>Public Class Form1 of Project 1: -</p>
  <p><img src="https://i.stack.imgur.com/UEyRK.png" alt="enter image description here" /></p>
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  <p>Public Class Form1 of Project 2: -</p>
  <p><img src="https://i.stack.imgur.com/HAPrC.png" alt="enter image description here" /></p>
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  <p>Error message: -</p>
  <p><img src="https://i.stack.imgur.com/zbTSD.png" alt="enter image description here" /></p>
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  <p>Don't have the option to select &quot;Import Namespace&quot;: -</p>
  <p><img src="https://i.stack.imgur.com/BMeYN.png" alt="enter image description here" /></p>
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  <p>This is how the form Project1 looks like: -</p>
  <p><img src="https://i.stack.imgur.com/GKw6o.png" alt="enter image description here" /></p>
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  <p>My Reference Manager =&gt; Solution option is empty</p>
  <p><img src="https://i.stack.imgur.com/7jxV5.png" alt="enter image description here" /></p>
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  <p>Let say, if I want to browse to the reference file in Solution =&gt; Projects option above, which file type should I choose ?? <br/>a. Visual Basic Project file <br/>b. USER File <br/>c. VSPSCC File</p>
  <p><img src="https://i.stack.imgur.com/reoR5.png" alt="enter image description here" /></p>
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  <p>How to call Form1 (in olAddIn_With_Form1) from Project1 (Startup project) ?
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  Answer:
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  Add the .dll via Reference Manager window then browse to ...\bin\Debug\olAddIn_With_Form1.dll
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  Dim myolAddIn_With_Form1Form1 As New olAddIn_With_Form1.Form1
  myolAddIn_With_Form1Form1.ShowDialog()</p>
  <p><img src="https://i.stack.imgur.com/bNvAr.png" alt="enter image description here" /></p>
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  <p>For kicks, I try to add the whole project via &quot;Add as link&quot; method and I got this error message</p>
  <p><img src="https://i.stack.imgur.com/DqoJ1.png" alt="enter image description here" /></p>