PC went down while playbacking a video. When restarted, Vegas opened the veg file, but while opening it gave the message

"an error occured during the current operation. An exeption has occured"

Sonic Foundry Vegas 4.0
Version 4.0b (Build 174)
Exception 0xC0000092 (float stack check) READ:0x0 IP:0x10B7459
In Module 'VEGAS40K.DLL' at Address 0x1000000 + 0xB7459
Thread: GUI ID=0xFFFC2F63 Stack=0xDFF000-0xE00000
Registers:
EAX=00df0020 CS=0187 EIP=010b745b EFLGS=00210246
EBX=000000a5 SS=018f ESP=00dff310 EBP=00dff330
ECX=00dff368 DS=018f ESI=000019b2 FS=139f
EDX=0000007c ES=018f EDI=000000ca GS=0000
Bytes at CS:EIP:
010B745B: DD 5C 24 00 DD 44 24 00 .\: DC 5D 1C DF E0 F6 C4 05 .]......
Stack Dump:
00DFF310: C3306CEC
00DFF314: 08EF5F9E 08EC0000 + 35F9E
00DFF318: 19B215CA 10090000 + 9A915CA
00DFF31C: 139F018F 10090000 + 396018F
00DFF320: 00FF018F 00FE0000 + 1018F
00DFF324: 03EB00A3 03C10000 + 2A00A3
00DFF328: BFF613E2 BFF60000 + 13E2 (KERNEL32.DLL)
00DFF32C: 00000187
00DFF330: 00DFF4A0 00CF0000 + 10F4A0
00DFF334: 010B7687 01000000 + B7687 (VEGAS40K.DLL)
00DFF338: 00DFF368 00CF0000 + 10F368
00DFF33C: 1F1F1F1F 1C230000 + 2FC1F1F
00DFF340: 3FDF1F1F 35690000 + A761F1F
00DFF344: 1A1A1A1A 10090000 + A111A1A
00DFF348: 3FCA1A1A 35690000 + A611A1A
00DFF34C: 50505050 48070000 + 8495050
> 00DFF35C: 004685B5 00400000 + 685B5 (VEGAS40.EXE)
00DFF360: 00DFF368 00CF0000 + 10F368
00DFF364: 0000007C
00DFF368: 00DF3000 00CF0000 + 103000
00DFF36C: 0000006E
> 00DFF388: 0046B9B4 00400000 + 6B9B4 (VEGAS40.EXE)
> 00DFF38C: 007C3441 00400000 + 3C3441 (VEGAS40.EXE)
00DFF390: 33333333 20100000 + 13233333
00DFF394: 3FE33333 35690000 + A7A3333
00DFF398: 00000080
00DFF39C: 0000005A
> 00DFF3D8: BFF6287A BFF60000 + 287A (KERNEL32.DLL)
> 00DFF3E4: 006E6EA5 00400000 + 2E6EA5 (VEGAS40.EXE)
00DFF3E8: 49E586BE 48070000 + 1DE86BE
00DFF3EC: 00000000
00DFF3F0: 00000001
00DFF3F4: 0000072E
> 00DFF44C: BFF613E2 BFF60000 + 13E2 (KERNEL32.DLL)
> 00DFF454: BFF6424A BFF60000 + 424A (KERNEL32.DLL)
> 00DFF474: 0046AB49 00400000 + 6AB49 (VEGAS40.EXE)
- - -
00DFFFF0: 2DA71B4E 20100000 + D971B4E
00DFFFF4: 899C1FEC 899A2000 + 1FFEC
00DFFFF8: BFF7A24F BFF60000 + 1A24F (KERNEL32.DLL)
00DFFFFC: 00000000

________________

When clicking okay, Vegas shuts down:(
How can I rescue the file? The backup file has the same error too.