ContributionsMost RecentMost LikesSolutionsRe: Inheritance and Custom ObjectsI recommend using prototypal inheritance or if you prefer pseudoclassical inheritance, to try out Inheritance.js We use Inheritance.js in our automation framework and had no problems.Re: How to reduce the time to load a ProjectSuite?Perhaps deleting project items that are not relevant to the projects will increase load time. You may also want to read this article: http://www.automatedqa.com/techpapers/testcomplete/test-playback-performance-tips/Re: Testing for Null ObjectWhich scripting language are you using?Re: Support for prototypal inheritance in JScript broken in 7.52I use subscript notation for a bit of metaprogramming so you can continue to use it, just don't use it when you call prototype: e.g., NobleObject.prototype = Object["create"](BaseObject.prototype); It should still work with that change. As for the JScript replacement for SpiderMonkey or V8, I think TestComplete is pretty much married with (Microsoft) JScript. Any change to the engine could break backwards compatibility, but still a good question to ask AQA. AQA: Can JScript engine be replaced in the foreseeable future?Re: Support for prototypal inheritance in JScript broken in 7.52It looks like you're a fan of Douglas Crockford's work. May I ask why you're using subscript notation? Have you tried using prototype in dot notation? Maybe that's where it's breaking. We're using a library that uses prototypal inheritance and it's working fine in TC 7.52. Re: Performance degradation with aqTextFile.Line and aqTextFile.SetPositionHi David, Thanks for the reply. We're using TC 7.52.Performance degradation with aqTextFile.Line and aqTextFile.SetPositionHi, We initially created a function that uses aqTextFile.SetPosition to set the position back in the opened file, but came across a pretty bad performance issue when using it against a CSV file with only 19 rows. Fortunately, we have resolved the issue by using the cursor property to set the value back. Can you shed some light on this?Re: WPF ComboBox wText returning item's ClrFullClassName instead of the visual valueI want to emphasize that the behavior of the comboboxes has not changed. Rather, these special comboboxes just have special collections that contain custom objects. wText seems to be reading in the wrong place for these comboboxes. Can anyone shed light on this?Re: 64 -bit Windows 7. .NET application is not displayed in the Object Browser panelI suspect it's because you're on a really old version of TestComplete. I doubt that version is supported on newer operating systems like Windows 7. My recommendation to you is to upgrade to the latest version. I have no problems with TC 7.52 and Windows 7 64-bit.Re: How to create user defined constants in JScript?To minimize your global namespace, I suggest you create constants under an object literal: var Constants = { A : 1, B : 2, C : 3 };