What steps will reproduce the problem? 1. Compile the project DwsIdeDemo.dpr with Delphi XE3 64bit. 2. Run the program. 3. Execute any script (even a blank script causes the error).

What is the expected output? The script should execute.

What do you see instead? Project DwsIdeDemo.exe raised exception class $C0000005 with message 'c0000005 ACCESS_VIOLATION'.

What version of the product are you using? On what operating system? dwscript trunk revision 36618 Windows 7 Ultimate

Please provide any additional information below. I traced this to function StrDeleteLeft in dwsUtils always returning empty string on Delphi XE3 64bit due to QC110889 which has since been fixed in XE4.

See http://qc.embarcadero.com/wc/qcmain.aspx?d=110889 for more info.

For users still on Delphi XE3, it would be useful if you could implement the following workaround: always specify all three parameters when calling Copy. In function StrDeleteLeft, replace

Result:=Copy(aStr, n+1);

with

Result:=Copy(aStr, n+1, Length(aStr)-n);

In function StrAfterChar, replace

  Result:=Copy(aStr, p+1)

with

  Result:=Copy(aStr, p+1, Length(aStr)-p)

Also affected: TStrSplitFunc.DoEvalAsVariant in dwsStringFunctions.

Correction: dwscript revision 2607.