My application runs fine on my development machine, and I've tried it
on other machines that have no development tools installed.  I've run
it succesfully on Win95 and NT4.  But when I run it on various
machines at my client site, I get the following error.

JMV19 caused an invalid page fault in
module JMV19.EXE at 0167:00403a53.
Registers:
EAX=00403a49 CS=0167 EIP=00403a53 EFLGS=00010216
EBX=00403a49 SS=016f ESP=0065f4c4 EBP=0065fb90
ECX=00000000 DS=016f ESI=00780c40 FS=2fa7
EDX=00000001 ES=016f EDI=0065f7f4 GS=0000
Bytes at CS:EIP:
8b 51 08 52 e8 b6 68 00 00 8b 4d ec 85 c9 74 07
Stack dump:
00000030 00000000 7800a917 0065f7f4 0065fb84 0065f4e8 00403a49
00403a49 0065fb90 0065f510 78007dfa 00403a49 0065fb84 00000100
0065f554 78007e10

They have a half-dozen machines, and this happens on all of them.  Can
anyone give me an idea of what causes this kind of error, and what
might be wrong with my app?  Thanks.

Johnny