9001

Summary:	WorkStack is full
Cause:	There are several possible causes for this error: The statement may be too complex. The string concatenated may be too large. There may be too many nested functions.
Remedy:	Break the statements and expressions into smaller, less complex pieces that contain fewer nested functions. You can also increase the WorkStack setting in the BRConfig.sys file, but remember that work stack space comes from user memory. Or add a line to BRConfig.sys that says i.e. WorkStack 64000 See also System Limits.