Rockwell Automation 9323-S5500D A.I. SERIES MICROLOGIX 1000 AND PLC-500 SOFTW - Manual (Page 526)

Error Codes
B-xxv
37: VIR_ERR_37
Read error occurred attempting to read %ld bytes from file:%s %ld bytes read DOS
error:%s
VirtualXref
1: VIRTUALXREF_1
Couldn’t save new virtual cross reference information to data base. Virtual Xref
information may be invalid.
2: VIRTUALXREF_2
Couldn’t read virtual cross reference information from the Data Base. Virtual Cross
Reference information will be invalid. NOTE: THIS WILL OCCUR WHEN
LOADING A PROGRAM THAT HASN’T BEEN XREF’D WITH THE ROCKWELL
SOFTWARE XREF GENERATOR. RUN XREF FROM UTILITY MENU #2.
3: VIRTUALXREF_3
Could not allocate %u bytes for a buffer to hold virtual cross reference information!