VBP is locking up

[Too_Tall_Crown_Victoria]

I have been implementing the procedures outlined in the previous post. However, it is not helping. This morning I ran into the lock up a number of times. However it never locks up on the same step/action. However, I did start to notice that all the lockups have been on a "Run Program" step that migrated from VB6. Even after setting the affinity to 1 it did not help. Most of my "Run Programs" were doing xcopy commands via DOS.

Once I converted the first group of xcopy command to use the File Copy step it did not fail.

A few questions on this:
1. Is there an issue in the migration of "Run Program" from previous programs"
2. Why would an xcopy lock up VBP?
3. Should I discontinue the use the older "Rum Program"'s and reset them to the new actions?

Thanks