SLK refuses to recompile REDI+ with the latest MFC's and other Pentium specific instruction extension compilers.
Recommendations on a minimum configuration should start at 1Ghz using a minimum 200Mhz+ Bus speed, along with a minimum 384MB, preferrably 512MB or larger, so that the application can "possibly" operate in memory.
Review with your NetAdmin special configuration to increase VRAM and the system swap file size from the standard/minimum to over 512MB (which is virtual, not real memory). This will allow this "page intensive" top heavy front end software application / boondogle to swap without over laying pages in the swap file. Normally, when one is being stepped on, or at risk, the entire machine / OpSys (operating system) pauses to handle this "system instability". Win2000/XP Pro handles this far better than Win95/98/ME/XP.
Consider offloading to another machine, with its own ISP connection, any browsers, instant messengers or email client applications. Consider using your primary machine exclusively for REDI+ software with NO OTHER application running.
Fat clients, are what huge software applications are called. RediPlus is about as fat as you can get; even the resource intensive database applications (both server version and client versions) have recompiled their footprints into thin applications. Both Sybase, Oracle, IBM's UDP/DB2 and SQL Server/Microsoft. Each of these operate far easier on the same physical machine than RediPlus. Simplistic measures, like CPU usage percent and Disk Page Faults will prove these claims.
OR,
Consider the competition's thin client, fully robust direct access software applications for trading.
Or,
suggest that your preferred broker carry and offer other software choices to trade through.