cmmgr32.exe does not appear in system32.
I tried reinstalling the operating system with XP cd.
After that reinstalled drivers for AGERE SOFT MODEM which is where this extension must belong to, since this is the dial up driver.
Have not been able to fix the pproblem.
I read this problem from a program called registry mechanic which says THE VALUE IS INVALID.
Dial Up keeps crashing my PC so I know this is a problem.