Exceptions

ExceptionType	ExceptionParam	ExceptionToString(ExceptionType, '$0')
12		Type Mismatch	Bar {Type: variant} := Foo {Type: refer to Data Types, equivalent for all provided}
15		divide by Zero	0 / 0;
20	'$1' is not a valid integer value	Exception: $0	StrtoInt('$1');
20	Nil interface	Exception: $0	IDispatchInvoke(Foo {Type: variant or IDispatch}, false {or true}, 'Name', ['Par1', 'Par2']);
20	Invalid array	Exception: $0	Bar {Type: variant} := Foo {Type: array[0..10] of string};
20	Could not convert variant of type (Null) into type (Integer)	Exception: $0	Bar {Type: smallint} := Null;
20	Could not convert variant of type (Null) into type (Int64)	Exception: $0	Bar {Type: boolean or byte} := Null;

 procedure ThrowException(const ExType: integer; const ExParam: string);
 var
   Vnt: variant;
 begin
   Vnt := ExType;
   RaiseException(Vnt, ExParam);
 end;

 procedure ActivateServer();
 var
   i: byte;
   Bar: variant;
 begin
   for i := 1 to 25 do begin
     WriteLn('<--- ' + InttoStr(i) + ' --->');
     try
       ThrowException(i, 'p' + InttoStr(i));
     except
       Bar := ExceptionType;
       WriteLn('ExceptionType=' + Bar);
       WriteLn('ExceptionParam=' + ExceptionParam);
       WriteLn('ExceptionToString(...)=' + ExceptionToString(ExceptionType, '$0'));
     end;
   end;
 end;

Results:

 <--- 1 --->
 ExceptionType=1
 ExceptionParam=p1
 ExceptionToString(...)=Cannot Import $0
 <--- 2 --->
 ExceptionType=2
 ExceptionParam=p2
 ExceptionToString(...)=Invalid Type
 <--- 3 --->
 ExceptionType=3
 ExceptionParam=p3
 ExceptionToString(...)=Internal error
 <--- 4 --->
 ExceptionType=4
 ExceptionParam=p4
 ExceptionToString(...)=Invalid Header
 <--- 5 --->
 ExceptionType=5
 ExceptionParam=p5
 ExceptionToString(...)=Invalid Opcode
 <--- 6 --->
 ExceptionType=6
 ExceptionParam=p6
 ExceptionToString(...)=Invalid Opcode Parameter
 <--- 7 --->
 ExceptionType=7
 ExceptionParam=p7
 ExceptionToString(...)=no Main Proc
 <--- 8 --->
 ExceptionType=8
 ExceptionParam=p8
 ExceptionToString(...)=Out of Global Vars range
 <--- 9 --->
 ExceptionType=9
 ExceptionParam=p9
 ExceptionToString(...)=Out of Proc Range
 <--- 10 --->
 ExceptionType=10
 ExceptionParam=p10
 ExceptionToString(...)=Out Of Range
 <--- 11 --->
 ExceptionType=11
 ExceptionParam=p11
 ExceptionToString(...)=Out Of Stack Range
 <--- 12 --->
 ExceptionType=12
 ExceptionParam=p12
 ExceptionToString(...)=Type Mismatch
 <--- 13 --->
 ExceptionType=13
 ExceptionParam=p13
 ExceptionToString(...)=Unexpected End Of File
 <--- 14 --->
 ExceptionType=14
 ExceptionParam=p14
 ExceptionToString(...)=Version error
 <--- 15 --->
 ExceptionType=15
 ExceptionParam=p15
 ExceptionToString(...)=divide by Zero
 <--- 16 --->
 ExceptionType=16
 ExceptionParam=p16
 ExceptionToString(...)=Math error
 <--- 17 --->
 ExceptionType=17
 ExceptionParam=p17
 ExceptionToString(...)=Could not call proc ($0)
 <--- 18 --->
 ExceptionType=18
 ExceptionParam=p18
 ExceptionToString(...)=Out of Record Fields Range
 <--- 19 --->
 ExceptionType=19
 ExceptionParam=p19
 ExceptionToString(...)=Out Of Memory
 <--- 20 --->
 ExceptionType=20
 ExceptionParam=p20
 ExceptionToString(...)=Exception: $0
 <--- 21 --->
 ExceptionType=21
 ExceptionParam=p21
 ExceptionToString(...)=Null Pointer Exception
 <--- 22 --->
 ExceptionType=22
 ExceptionParam=p22
 ExceptionToString(...)=Null variant error
 <--- 23 --->
 ExceptionType=23
 ExceptionParam=p23
 ExceptionToString(...)=Interface not supported
 <--- 24 --->
 ExceptionType=24
 ExceptionParam=p24
 ExceptionToString(...)=$0
 <--- 25 --->
 ExceptionType=25
 ExceptionParam=p25
 ExceptionToString(...)=Unknown error

Same results for 26-255 as 25; 0 has no exception thrown

Enumerated values

http://www.be-precision.com/products/precision-builder/express/webhelp/en/topics/PSSyntax.htm

 TIFException = (ErNoError, erCannotImport, erInvalidType, ErInternalError, erInvalidHeader, erInvalidOpcode, erInvalidOpcodeParameter, erNoMainProc, erOutOfGlobalVarsRange, erOutOfProcRange, ErOutOfRange, erOutOfStackRange, ErTypeMismatch, erUnexpectedEof, erVersionError, ErDivideByZero, ErMathError,erCouldNotCallProc, erOutofRecordRange, erOutOfMemory, erException, erNullPointerException, erNullVariantError, erInterfaceNotSupported, erCustomError)

TIFException appears to be an enumeration of the following, with specified numeric equivalents. These should all be defined (but only the first few were tested):

0. ErNoError
1. ErCannotImport
2. ErInvalidType
3. ErInternalError
4. ErInvalidHeader
5. ErInvalidOpcode
6. ErInvalidOpcodeParameter
7. ErNoMainProc
8. ErOutOfGlobalVarsRange
9. ErOutOfProcRange
10. ErOutOfRange
11. ErOutOfStackRange
12. ErTypeMismatch
13. ErUnexpectedEof
14. ErVersionError
15. ErDivideByZero
16. ErMathError
17. ErCouldNotCallProc
18. ErOutofRecordRange
19. ErOutOfMemory
20. ErException
21. ErNullPointerException
22. ErNullVariantError
23. ErInterfaceNotSupported
24. ErCustomError