SNA Server Access Violation in Function Sapascp()

MORE INFORMATION

   eax=00000000 ebx=00000000 ecx=014677f6 edx=014677f6 esi=01460000
   edi=00000000
   eip=0030a3fc esp=0125fef0 ebp=014677e4 iopl=0         nv up ei pl zr na
   po
   nc
   cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000
   efl=00000246

   function: sapascp
        0030a3da 33ff             xor     edi,edi
        0030a3dc 66897c2416       mov     [esp+0x16],di
   ss:0256e8f8=????
        0030a3e1 8b4c2448         mov     ecx,[esp+0x48]
   ss:0256e8f7=????????
        0030a3e5 668939           mov     [ecx],di
   ds:014677f6=0101
        0030a3e8 8b442444         mov     eax,[esp+0x44]
   ss:0256e8f7=????????
        0030a3ec 8b28             mov     ebp,[eax]
   ds:00000000=????????
        0030a3ee 8d4d12           lea     ecx,[ebp+0x12]
   ss:027761ea=????????
        0030a3f1 8b4504           mov     eax,[ebp+0x4]
   ss:027761ea=????????
        0030a3f4 894c2420         mov     [esp+0x20],ecx
   ss:0256e8f7=????????
        0030a3f8 8944241c         mov     [esp+0x1c],eax
   ss:0256e8f7=????????
   FAULT ->0030a3fc 0fbf5004         movsx   edx,word ptr [eax+0x4]
   ds:0130ea07=e2f2
        0030a400 0fbf4006         movsx   eax,word ptr [eax+0x6]
   ds:0130ea07=e2f2
        0030a404 2bc2             sub     eax,edx
        0030a406 83f822           cmp     eax,0x22
        0030a409 7c1c             jl      sapascp+0x57 (0030a427)
        0030a40b 807d2412         cmp     byte ptr [ebp+0x24],0x12
   ss:027761ea=??
        0030a40f 7416             jz      sapascp+0x57 (0030a427)
        0030a411 8b4c241c         mov     ecx,[esp+0x1c]
   ss:0256e8f7=????????
        0030a415 8a440a2a         mov     al,[edx+ecx+0x2a]
   ds:027761fd=??
        0030a419 fec8             dec     al
        0030a41b 3c01             cmp     al,0x1
        0030a41d 1ac0             sbb     al,al

*----> Stack Back Trace <----*

   FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
   0125ff28 0030847c 00000002 0125ff70 0125ff6e 000000ff snaservr!sapascp
   (FPO: [EBP 0x000000ff] [3,11,4])
   0125ff50 0030c566 00000002 0125ff70 0125ff6e 00000000 snaservr!sapmain
   (FPO: [EBP 0x000000ff] [3,2,4])
   0125ff70 0030d1f4 0125ffec 001435a8 00000001 77f0178e snaservr!sbpcdin
   (FPO: [0,3,1])
   0125ff88 0030d7f5 009811c0 00000001 001435a8 77f8fe94 snaservr!sbpsched
   (FPO: [EBP 0x0125ffec] [0,1,4])
   0125ff8c 009811c0 00000001 001435a8 77f8fe94 001435a0 snaservr!sbpgmain
   (FPO: [0,0,0])
   0125ffa8 77dd8f76 00000001 001435a8 77f9b340 77f04f2c
   snasvc!ServiceMainFunction  (FPO: [2,1,3])
   0125ffec 00000000 77dd8f68 001435a0 00000000 00000000
   advapi32!RegisterServiceCtrlHandlerA
   00000000 00000000 00000000 00000000 00000000 00000000
   snaservr!<nosymbols>