i use regular expressions in some of my programs.
when i create a setup package, the PD wizard wants to include a file called "3".
opening my .VBP file in notepad, i find this line:
Reference=*\G{3F4DACA7-160D-11D2-A8E9-00104B365C9F}#5.5#0#C:\WINDOWS\SYSTEM\VBSCRIPT.DLL\3#Microsoft VBScript Regular Expressions 5.5
i ignore the missing "3" file error and add the VBSCRIPT.DLL file manually to the setup package.
i haven't had any problems doing this.