VB5cli.exe installs the Vbcmpfix.exe utility, which fixes problems with the following three symptoms: 
NOTE: The former name of VB5Cli.Exe was VBC.EXE. The file name was changed. 

Symptom I
When trying to site a control within your project, you receive the following error message: 
License Information For This Component Not Found. You Do Not Have An
Appropriate License To Use This Functionality In The Design Environment. 

Symptom II
When trying to compile your project, you receive the following error:
Compile Error : Permission Denied 

Symptom III
When trying to run your project, you receive the following error:
Runtime Error '429' : ActiveX Component Can't Create Object