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Preparing for next generation operating systems?

 

Our expertise in porting software and 64-bit computing platforms can make sure your products are ready for the latest operating systems so you don't miss a single sales opportunity.

 

Contact us at sales@stg.com today for a special offer on porting to these new platforms:

 

· Windows 7 / Windows Vista including WHQL

 

· Windows XP 64

 

· MacOS on Intel

 

· Solaris 10 on Intel

 

 

• Ported 32-bit compatible kernel-mode drivers to 64-bit Windows; in one instance, this include adapting existing drivers provided remote control capabilities for a product running on the 32-bit IA32 versions of Windows. These drivers were ported to both IA64 and AMD64 platforms, and the code tree was modified to build the binaries for the different platforms from a single set of source code. These drivers were then tested under Windows XP 2003 64-bit.

• Implemented a mirror video driver for Windows 2000 and XP to permit remote display and access to a complete Windows desktop over a network connection. This driver worked together with the resident local video driver to capture and duplicate video operations on a remote display system.

• Implemented a Windows NT4/2000/XP printer port monitor as an enhancement to the built-in Windows print to file capability. This enhancement allows applications to print to local files without any user interactions. It also supports launching a post-processing application, either after every print job or after the printer port has been idle for a configurable time period, to further process the output file without user intervention.

• Extended a wireless Windows-based LAN/Modem product to include support for Windows XP and HomeRF 2.0. Work was based on an earlier Windows 2000 port performed by STG with specific changes for Windows XP and additional wireless device support. This resulted in a single merged version of the product supporting all existing environments and devices plus Windows XP and HomeRF 2.0. The merged code includes applications for installation, configuration, and management of wireless Ethernet adapters and gateways. In addition, debugging of NDIS miniport and protocol drivers using WinDbg was performed and modifications were made as needed.

• Updated a legacy-style keyboard and mouse filter driver to comply with the latest WDM driver standards. The original driver intercepted only a single instance of a keyboard and a mouse; the ported driver intercepts any number of input devices. The updated driver also provides an interface to both insert keyboard and mouse data into the input data stream, and to suppress data coming from keyboards and mice attached to the system allowing an external application to control the keyboard and mice data passed on by the driver.

• Implemented a HID filter driver to provide input suppression capabilities for all HID devices. This PNP-compatible driver is used in a remote control product to provide complete suppression of all HID devices, including USB and Bluetooth keyboards and mice.

• Developed WinCE drivers and application layer software for monitoring and controlling inventory devices in a retail warehouse application. The software included a proprietary protocol stack which communicated with a family of merchandise handling devices in order to monitor their operation and configure their actions and responses. The implementation was done on a WinCE handheld using a proprietary interface card.

• Developed custom Windows NT, 2000, and XP mouse drivers for using the VNC (Virtual Network Computing) remote display system in conjunction with VMware Workstation. This corrects the problem where the Windows cursor and the VNC cursor get out of sync. This driver integrates more closely into the Windows/VMware combination and eliminates this problem.

• Investigated problems and provided various bug fixes to a commercial remote control product's graphics filter driver. Many of the fixes and improvements were derived from careful analysis and tracing of both current and legacy display drivers to determine the nature of the problem exhibited when using a specific display driver. Given the variations possible among commercial display drivers, the filter was modified to be as generic as possible to minimize potential conflicts with new drivers. Developed an in-depth understanding of Microsoft's NetMeeting and Remote Desktop interfaces during the course of adding explicit support for these technologies.

• Ported an existing Windows 9x/NT remote control video display driver to be compatible with the mirror display driver capability under Windows XP. Modified an existing remote control wire protocol to handle the new functionality presented by GDI in Windows 2000 and Windows XP.

• Implemented a reference LAN over WAN adapter NDIS driver for Windows 2000 and XP. This driver was developed to be used as a Windows driver reference and example for developers creating WAN drivers and to demonstrate NDIS development concepts. This driver will be available as part of a future Microsoft Windows DDK release.

• Created a customized Windows installation packages that automatically install and configure STG's TextPrint and FlexPort printer drivers without user interaction for a major supplier of financial and accounting software.

• Implemented NDIS drivers to support tunneling functionality for Mobile IP support. Created NDIS intermediate and miniport drivers with user API functions for Windows NT and Windows 2000 platforms.

• Created a customized GUI and packaging for a wireless Windows-based LAN/Modem product family to suit the needs of specific European OEMs. The customization was handled by developing a separate DLL to support generating additional OEM-specific product versions with minimal effort and without modifications to the base product code.

• The Generic Text printer driver on Windows NT4, 2000, and XP truncates and omits data as it positions text to fit on a printable page. Many applications therefore cannot print to a flat text file which can be parsed or manipulated by other software because the text in the file will be incomplete or otherwise altered. STG created a Rendering Plug-In to intercept all data before it was passed on to the Generic Text printer driver. By intercepting the text data, we were able to extract all of the textual data and insert it directly into the print stream. The Rendering Plug-In allowed us to preserve both the positioning of the text (by keeping the columns and rows aligned regardless of font style or size) and the integrity of the data (by preventing omissions and truncations). The Rendering Plug-In was designed to work under Windows NT4 (with Service Pack 4 or higher), Windows 2000, and Windows XP.

• Performed video driver and video related debugging under Windows 2000/NT/9x for a remote control product to permit remote access of a Windows system over a LAN or WAN. Specific video problems were investigated and corrected as needed as part of an ongoing product support effort. Also implemented a null keyboard and null mouse driver to simulate a hardware keyboard and mouse devices to enhance remote control capabilities.

• Ported a wireless Ethernet 802.3 wireless LAN/Modem product to Windows 2000 from Windows 9x. This included installation, configuration, and management applications as well as performing NDIS 3.10 to NDIS 5.0 conversion and updating for the corresponding protocol drivers. The product was extended to take advantage of Windows 2000 specific features and capabilities such as multi-user handling and permission support. Created custom installation and packaging designed for direct to consumer distribution and installation. The baseline code was modified to allowing building Windows 2000 and Windows 9x products from the same source base; producing either a single binary capable of running on all platforms or building platform specific binaries from a single code base.

• Enhanced a test interface library for telecom testing to support multi-threaded operation to allow multiple tests to be overlapped and performed simultaneously. The modified library was ported to systems using the Windows NT, Solaris SPARC, HP-UX, and AIX operating systems.

• Developed SNMP agents for a series of intelligent SSL encryption coprocessor cards integrated into the Windows SNMP subsystem. This included MIB design (including variable access and trap definition) as well as implementation of the enterprise MIB.

• Developed Windows 95 and Windows 98 drivers for network based serial communication controllers.

• Created PCI and ISA drivers for WinNT, Linux, and UNIX for a variety of networking cards and devices.

• Developed a USB bar code scanner driver and supporting Windows application for a major retailing systems integrator to support simplified ordering of "multi-optioned" products based on UPC IDs. The system communicates with a back end web-based interface into an existing retail ordering and replenishment system. The application supports multiple simultaneous users and multiple product suppliers. The Windows GUI was supports multiple languages as well as and localization.

• Developed SNMP support for a WinNT-based distributed monitoring and control application for power conditioning equipment. Support included SNMP trap generation in the event of abnormal conditions as well as MIB-level access to current status information. This was done using both standard industry MIBs as well designing and implementing a customer specific enterprise MIB to provide access to unique functionality.

• Development of proxies for all key Internet application level protocols (FTP, Telnet, HTTP, NNTP, Real Audio, etc.) for a vendor of a Windows NT based Internet firewall product. Implementation was done in an extensible manner using C++ to allow new proxies to be easily developed.