Following is a reference letter from a client we consult using our expertise with the OS/2 operating system. This application software, UltiVist, proved particularly troublesome to arrive at the perfect hardware specification to allow the application software to not lock up the entire computer as the application started. For what ever reason, UltiVist runs properly on this 3 GHz speed system, but will lock up all of OS/2 when run on vintage hardware which was around when UltiVist was last sold.

Additional complications arose as the UltiVist Client software depends on IBM's older 16-bit TCP/IP stack. That meant we needed to build an OS/2 Warp 4 image on vintage hardware which was around when OS/2 Warp 4 was around, upgrade that image to the very latest updates available, then transfer that image to the Pentium 4 system we were building for this client. We were unable to coax the USB drivers from OS/2 Warp 4.5x / eComStation 1.2R to also work on OS/2 Warp 4, so a dual-boot configuration was necessary where OS/2 Warp 4 is used to run UltiVist Workstation, and eComStation 1.2R is used when access to USB storage devices is needed. The process of getting OS/2 Warp 4 to work with the newer LVM partitioning software was a delicate / tricky task, but finally persistence paid off.

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