Joel points out that you will HAVE to upgrade to Beta2 Technical Refresh (B2TR) if you want to upgrade to the RTM version of SharePoint V3. Make sure you plan and stage your production testing environments and as always back everything up first.
Full link: http://blogs.msdn.com/sharepoint/archive/2006/07/14/665864.aspx
As always perform at your own risk and edit the registry at your own risk it could cause problems
Here is how you would disable Error Reporting from the registry as requested from the previous post.
1) Click Start->Run, then regedit and OK

2) Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PCHealth\ErrorReporting\ExclusionList
3) Right click on the right hand side, select New and then select DWORD Value

4) Enter the name of your application for the Name and then set the Data as a 1 or 0
1 = Active
0 = Not Active
Ok so it is true, Microsoft may not need your dump files for an application you are working on. Here is a suggestion on how to turn off the Error Reporting Dialog.
Go to the Error Reporting section of the configuration of Windows. There is more than one way to get there either through My Computer or Control Panel->System
1) Click Start, then right click on My Computer, then click Properties

2) Click the Advanced tab, click the Error Reporting button

3) Click the Choose Programs… button

4) Click Add… on the “Do not report errors for these programs:“, then Browse… to your program and click OK.

After that you are set and you should see more errors on the screen. This will also take less time to and less resources to throw the error because it doesn’t have to create the dump file.