X3 I saw nothing to distinguish between the two. The only directories in NetHook_2.0_Examples were BoltCircle_VB, NetHook2ExampleVB and NetHook2Example I'd ask if it matters but apparently it does. So Dim TransMode As TranslationMode = TranslationMode.MoveExisting SHOULD BE? Dim TransMode As Translate = Translate.MoveExisting Will in conflict with dot translate in following statement? (parameters deleted for clarity) SecondNewLine.Translate(,,,, GraphicsViewNumber)

Error 1 Type 'TranslationMode' is not defined. C:Documents and SettingsMikeMy DocumentsNetHook_2.0_ExamplesNetHook_2.0_ExamplesNetHook2ExampleVBNetHook2ExampleVBNetHook2ExampleVB3 - Database3.3 - The Geometry Class.vb 96 30 NetHook2ExampleVB Help

also, sdk's did require modification to work with Borland VCL. Does .Net change that? I thought it was supposed to, as it was sort of billed a any language platform. Thanx Mike:)

Thanks again Roger for more really useful details and good advice. Frozen could have benfits over fluid, but I also read that to mean new features will require .Net v2 What about X3? Where's the cutoff?

Thanks for the info Roger! I thought about trying Delphi Turbo Explorer(free) for .Net. But it's old, uses .Net 1.1 and has patches from the get go. Delphi 2009 was supposed to be available today but the online store says pre-order. If I try the freebee does Net1.1 matter? Thanx

Most splines are split pitch. A 24/48 spline has 24 addendum and 48 dedendum. They usually have a 30 degree pressure angle.

Is anybody out there using Delphi to write net-hooks?