INT 21 - Windows95 - FAT32 - Set DPBsee Drive Paramter Block TO USE FOR FORMATTING
	AX = 7304h
	DL = drive number (00h=default, 01h=A:, etc.)
	CX = size of buffer (must be at least 18h)
	ES:DI -> buffer for Set_DPBforFormat structure (see #01790)
Return: CF clear if successful
	    ES:DI buffer updated
	CF set on error
	    AX = error code (18h = bad length in CX)
SeeAlso: AX=7302h,AX=7303h,AX=7305h


Format of Set_DPBforFormat structure:
Offset	Size	Description	(Table 01790)
 00h	WORD	(call) size
 02h	WORD	(call) structure version???  (0000h)
		(ret) ???
 04h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	(call) function number
		00h invalidate DPBsee Drive Paramter Block counts
		01h rebuild DPBsee Drive Paramter Block from BPBsee BIOS Parameter Block
		02h force media change (next access to drive rebuild DPBsee Drive Paramter Block)
		03h get/set active FATsee File Allocation Table number and mirroring
		04h get/set root directory cluster number
---function 00h---
 08h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	new DPBsee Drive Paramter Block free count (00000000h=no change, FFFFFFFFh=unknown)
 0Ch	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	new DPBsee Drive Paramter Block next-free (00000000h=no change, FFFFFFFFh=unknown)
 10h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
 14h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
---function 01h---
 08h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused???
 0Ch	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	(call) -> BIOS Parameter BlockThe BIOS Parameter Block stores the low-level layout of a drive.	See also INT 21h Function 53h. from which to rebuild DPBsee Drive Paramter Block
 10h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
 14h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
---function 02h---
 08h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
 0Ch	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
 10h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
 14h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
---function 03h---
 08h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	(call) new active FATsee File Allocation Table/mirroring state, or FFFFFFFFh to get
		bits 3-0: the 0-based FATsee File Allocation Table number of the active FATsee File Allocation Table
		bits 6-4: reserved (0)
		bit 7: do not mirror active FATsee File Allocation Table to inactive FATs
 0Ch	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	(ret) previous active FATsee File Allocation Table/mirroring state (as above)
 10h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
 14h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
---function 04h---
 08h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	(call) new root directory cluster number
		    FFFFFFFFh to get current
 0Ch	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	(ret) previous root directory cluster number
 10h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused
 14h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	unused