What are the Progress Return Codes?

What are the Progress Return Codes?
What are the return codes for PROUTIL -C busy?
What are the return codes for PROUTIL -C holder?
What is the return code for RFUTIL ?
What are the PROBKUP return codes 
What is the PROQUIET Return Code
What are the DSRUTIL Return Codes used in replication enabled environments

Return codes report the exit status of a program.  They are used to determine whether program execution completed successfully without error.

An exit status, or return code zero (0) indicates that a program execution completed successfully.  
Any non-zero values are used to indicate failure and may sometimes indicate other conditions.
If a program returns a non-zero exit status but appears to have completed successfully, it should be reported to Progress Technical Support

PROBKUP Return Codes: 

Article PROBKUP Return Codes    

PROQUIET Return Codes:  

Article  PROQUIET return codes   

ROLL FORWARD Return Codes:

Article  Return Code shows success when rolling forward partial ai file   

DSRUTIL Return Codes: 

Article DSRUTIL Return Codes   

PROUTIL -C BUSY and HOLDER Return Codes:

Article Using PROUTIL HOLDER to determine if a database is in use.           
Article Database did not shutdown when using dbman -stop scripts           
Article Using PROUTIL BUSY to determine if a database is in use.