I purchased the original space rangers 2 from direct2drive.
This version works fine without the add-on.
When I copy the files from the impulse add-on over, and run the rangers.exe file, it simply returns to desktop.
A file is generated in the errors folder. It says,
Start
Build=2.0 (2007.08.08)
DXVersion=10.0.0
=== Exception context ===
Time: 00:00:01:211
RTL: Exception
Error reading file system of the package file:data\1captain.pkg
Synchronize:
myRaiseExceptionProc: 00516004
Registers:
Flags=00000246
EAX=01C0AB70
EBX=015B3D90
ECX=00000002
EDX=006E7FE5
ESI=01C0AB70
EDI=015B3D90
EBP=0012FE50
EIP=0051607F
ESP=0012FDEC
DS=00000000
ES=00000000
FS=00000000
GS=00000000
CS=00000000
SS=00000000
Stack:
0012FDEC: 46 02 00 00 90 3D 5B 01 70 AB C0 01 E5 7F 6E 00
0012FDFC: DE FA ED 0E 01 00 00 00 07 00 00 00 0C FE 12 00
0012FE0C: E5 7F 6E 00 70 AB C0 01 90 3D 5B 01 70 AB C0 01
0012FE1C: 90 3D 5B 01 50 FE 12 00 28 FE 12 00 68 FE 12 00
0012FE2C: 04 80 6E 00 50 FE 12 00 0D 00 00 00 00 00 00 00
0012FE3C: 90 3D 5B 01 14 2B 5B 01 00 00 00 00 00 00 00 00
0012FE4C: 04 00 00 00

FE 12 00 FA 9B 6E 00 00 00 00 00
0012FE5C: 00 00 00 00 B8 4A 5B 01 06 23 4B 00 94 FE 12 00
0012FE6C: 26 23 4B 00

FE 12 00 00 00 00 00 00 00 00 00
0012FE7C: FF FF FF FF 9C 12 1C 00 D4 4C 5B 01 80 2D 5B 01
0012FE8C: EC FE 12 00 FA F1 6E 00 F4 FE 12 00 14 F3 6E 00
0012FE9C: EC FE 12 00 00 00 00 00 00 00 00 00 00 00 00 00
0012FEAC: 00 00 00 00 00 00 00 00 F4 20 5B 01 E4 20 5B 01
0012FEBC: D4 20 5B 01 04 21 5B 01 0B 00 00 00 58 58 6F 00
0012FECC: 00 00 00 00 00 00 00 00 00 00 40 00 E3 03 95 04
0012FEDC: 03 00 01 00 00 00 00 00 00 00 00 00 BC F3 6E 00
0012FEEC: A0 FF 12 00 D9 CC 6F 00 00 FF 12 00 11 CF 6F 00
0012FEFC: A0 FF 12 00 0C FF 12 00 CD CF 6F 00 A0 FF 12 00
0012FF0C: 94 FF 12 00 71 D0 6F 00 A0 FF 12 00 00 00 00 00
0012FF1C: 00 00 00 00 00 90 FD 7F 00 00 00 00 00 00 00 00
0012FF2C: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0012FF3C: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0012FF4C: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0012FF5C: 00 00 00 00 00 00 00 00 A4 18 19 00 3C 19 19 00
0012FF6C: 74 20 5B 01 04 A9 1B 00 9C A9 1B 00 00 00 00 00
0012FF7C: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0012FF8C: 00 00 00 00 00 00 00 00 DC FF 12 00 74 44 40 00
0012FF9C: A0 FF 12 00 AC FF 12 00 33 38 DC 75 00 90 FD 7F
0012FFAC: EC FF 12 00 BD A9 3F 77 00 90 FD 7F E0 46 12 00
0012FFBC: 00 00 00 00 00 00 00 00 00 90 FD 7F 00 00 00 00
0012FFCC: 00 00 00 00 00 00 00 00 B8 FF 12 00 00 00 00 00
0012FFDC: FF FF FF FF F2 8B 3C 77 04 48 40 77 00 00 00 00
0012FFEC: 00 00 00 00 00 00 00 00 38 CA 6F 00 00 90 FD 7F
0012FFFC: 00 00 00 00
Strangely there is no new version of the captain1.pkg file that comes with the add-on, and the 1.3 version has no problem at all with this file.