[Solved] iPXE for MS VPC 2007 not working

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I making iPXE ROM 10110009.rom with serial console 19200 for NIC MS VirtualPC 2007 to replace original ARGON option rom. After replace this option rom in VirtualPC.exe file - module BIOS 13502 - can not use this. In BIOS not view this option to set boot order. I make other option rom - MROM and after insert to VPC this option is available in BIOS and while boot have message like in attach image. It is probably problem with size 69KB. I maked test:
1. Extracted original ARGON PCI module from VirtualPC.exe 44,5KB
2. In hex editor increased size by inserting 00's at end of rom to 65KB - 66560 bytes - 512x130 DEC - 200x82 HEX
3. Correct size 55 AA 82 and calculate checksum 8-bit (inserting D7 at end offset) and now checksum 8-bit is 00
4. Now after insert this to VirtualPC.exe module is not available in BIOS.
Please help me make decrease size of iPXE with have serial console 19200. I now that need config files like: general.h and maybe other in ipxe/src/config folder. Please help me make or make for me 10110009.rom smaller than 64KB