Comments on: Reverse Engineering Citrix ThinWire https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/ Structural and Behavioral Patterns for Software Diagnostics, Forensics and Prognostics Wed, 27 May 2026 07:36:27 +0000 http://wordpress.org/?v=2.3.3 By: Software Generalist » Blog Archive » Reading Notebook: 16-July-09 https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-86334 Software Generalist » Blog Archive » Reading Notebook: 16-July-09 Tue, 28 Jul 2009 17:45:57 +0000 https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-86334 [...] Terminal services (pp. 19 -20) - an for architectural overview (UML diagram) please see this post: Reverse Engineering Citrix ThinWire  [...] […] Terminal services (pp. 19 -20) - an for architectural overview (UML diagram) please see this post: Reverse Engineering Citrix ThinWire  […]

]]> By: Software Generalist » Blog Archive » Reading Notebook: 24-July-09 https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-85872 Software Generalist » Blog Archive » Reading Notebook: 24-July-09 Fri, 24 Jul 2009 12:44:46 +0000 https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-85872 [...] USER and GDI functions (pp. 54 - 55) - Long time ago I created a UML component diagram depicting component dependencies extracted from stack traces: http://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/  [...] […] USER and GDI functions (pp. 54 - 55) - Long time ago I created a UML component diagram depicting component dependencies extracted from stack traces: http://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/  […]

]]> By: Dmitry Vostokov https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-535 Dmitry Vostokov Thu, 01 Mar 2007 17:41:14 +0000 https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-535 Corrected both diagrams (removed direct link from video display driver to video port driver) Thanks, Dmitry Corrected both diagrams (removed direct link from video display driver to video port driver)

Thanks,
Dmitry

]]> By: Toby Opferman https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-18 Toby Opferman Tue, 26 Dec 2006 00:29:09 +0000 https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-18 No problem. The video display driver also directly accesses the hardware and performs things such as DMA transfers. This helps speed things up as it then doesn’t require the display driver to send an IRP to the miniport for every graphic command. http://www.codeproject.com/system/driverdev6asp.asp No problem. The video display driver also directly accesses the hardware and performs things such as DMA transfers. This helps speed things up as it then doesn’t require the display driver to send an IRP to the miniport for every graphic command.

http://www.codeproject.com/system/driverdev6asp.asp

]]> By: Toby Opferman https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-16 Toby Opferman Tue, 26 Dec 2006 00:27:58 +0000 https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-16 The diagram is slightly inaccurate. The video driver only ever directly links against WIN32K and would not call VideoPort.Sys directly without going through WIN32K. There is also another Citrix related path missing which I would not be able to mention in a public forum. The diagram is slightly inaccurate. The video driver only ever directly links against WIN32K and would not call VideoPort.Sys directly without going through WIN32K. There is also another Citrix related path missing which I would not be able to mention in a public forum.

]]> By: Dmitry Vostokov https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-17 Dmitry Vostokov Sun, 05 Nov 2006 14:45:20 +0000 https://www.dumpanalysis.org/blog/index.php/2006/10/24/reverse-engineering-citrix-thinwire/#comment-17 Thanks for pointing this out! This was adopted from the picture in OSR article: From Andy's Bookshelf: So you Wanna Write a Video Driver? Figure 2 - DDI and Miniport Drivers http://www.osronline.com/article.cfm?id=66 I'll add a label to that link: "via win32k!EngDeviceIoControl" similar I've done for vdtw30.dll and termdd.sys interaction Thanks, Dmitry Thanks for pointing this out! This was adopted from the picture in OSR article:

From Andy’s Bookshelf: So you Wanna Write a Video Driver?
Figure 2 - DDI and Miniport Drivers

http://www.osronline.com/article.cfm?id=66

I’ll add a label to that link: “via win32k!EngDeviceIoControl” similar I’ve done for vdtw30.dll and termdd.sys interaction

Thanks,
Dmitry

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